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        The National Institute for Occupational Safety and Health (NIOSH)
        Centers for Disease Control and Prevention. CDC twenty four seven. Saving Lives, Protecting People
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      * Introduction
      * Search the Pocket Guide
      * Chemical Names, Synonyms and Trade Names
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                Chemical Names, Synonyms and Trade Names
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          + The National Institute for Occupational Safety and Health (NIOSH) Home
      * CAS Numbers
      * RTECS Numbers
      * Appendices
              + BACK
                Appendices
          + A – NIOSH Potential Occupational Carcinogens
          + B – Thirteen OSHA-Regulated Carcinogens
          + C – Supplementary Exposure Limits
          + D – Substances with No Established RELs
          + E – OSHA Respirator Requirements for Selected Chemicals
          + F – Miscellaneous Notes
          + G – 1989 Air Contaminants Update Project: Exposure Limits NOT in Effect
          + Type C & CE – Definitions for Type C and Type CE Respirators
          + Personal Protection and Sanitation Codes
          + First Aid Procedures
          + The National Institute for Occupational Safety and Health (NIOSH) Home
      * The National Institute for Occupational Safety and Health (NIOSH) Home
          The National Institute for Occupational Safety and Health (NIOSH)
         1. NIOSH Pocket Guide to Chemical Hazards
      Index of RTECS Numbers
      Print
        RTECS Numbers
            Related Pages
          RTECS No.              CHEMICAL NAME                                        
          AB1925000              Acetaldehyde                                         
          AB2450000              Chloroacetaldehyde                                   
          AB7700000              Dimethyl acetamide                                   
          AB9450000              2-Acetylaminofluorene                                
          AF1225000              Acetic acid                                          
          AF7350000              n-Butyl acetate                                      
          AF7380000              sec-Butyl acetate                                    
          AF7400000              tert-Butyl acetate                                   
          AG6825000              2,4-D                                                
          AH5425000              Ethyl acetate                                        
          AH9100000              Sodium fluoroacetate                                 
          AI4025000              Isobutyl acetate                                     
          AI4930000              Isopropyl acetate                                    
          AI5950000              Thioglycolic acid                                    
          AI9100000              Methyl acetate                                       
          AJ1925000              n-Amyl acetate                                       
          AJ2100000              sec-Amyl acetate                                     
          AJ3675000              n-Propyl acetate                                     
          AJ7875000              Trichloroacetic acid                                 
          AJ8400000              2,4,5-T                                              
          AK0875000              Vinyl acetate                                        
          AK1925000              Acetic anhydride                                     
          AK2975000              Methomyl                                             
          AL3150000              Acetone                                              
          AL7700000              Acetonitrile                                         
          AM0350000              Glycolonitrile                                       
          AM6300000              alpha-Chloroacetophenone                             
          AO6475000              Chloroacetyl chloride                                
          AO9600000              Acetylene                                            
          AP1080000              Dichloroacetylene                                    
          AS1050000              Acrolein                                             
          AS3325000              Acrylamide                                           
          AS4375000              Acrylic acid                                         
          AS7000000              Methyl-2-cyanoacrylate                               
          AT0700000              Ethyl acrylate                                       
          AT1925000              2-Hydroxypropyl acrylate                             
          AT2800000              Methyl acrylate                                      
          AT5250000              Acrylonitrile                                        
          AV2625000              Adiponitrile                                         
          BA5075000              Allyl alcohol                                        
          BD0330000              Aluminum                                             
          BD1200000              alpha-Alumina                                        
          BO0875000              Ammonia                                              
          BP4550000              Ammonium chloride fume                               
          BW6650000              Aniline (and homologs)                               
          BX4725000              N,N-Dimethylaniline                                  
          BX7350000              4-Dimethylaminoazobenzene                            
          BY4190000              N-Isopropylaniline                                   
          BY4550000              Monomethyl aniline                                   
          BY5425000              4,4'-Methylenedianiline                              
          BY6300000              Tetryl                                               
          BY7000000              p-Nitroaniline                                       
          BZ5410000              o-Anisidine                                          
          BZ5450000              p-Anisidine                                          
          BZ8580500              2,4-Diaminoanisole (and its salts)                   
          CC4025000              Antimony                                             
          CG0525000 (metal)      Arsenic (inorganic compounds, as As)                 
          CG0830000              Calcium arsenate (as As)                             
          CG6475000              Arsine                                               
          CI6475000              Asbestos                                             
          CI9900000              Asphalt fumes                                        
          CM3675000              Caprolactam                                          
          CM8050000              Propylene imine                                      
          CO9450000 (BPN)        Subtilisins                                          
          CO9550000 (Carlsburg)  Subtilisins                                          
          CQ8750000              Barium chloride (as Ba)                              
          CQ9625000              Barium nitrate (as Ba)                               
          CR0600000              Barium sulfate                                       
          CY1050000              4,4'-Methylenebis(2-chloroaniline)                   
          CY1400000              Benzene                                              
          CZ0175000              Chlorobenzene                                        
          CZ1050000              p-Nitrochlorobenzene                                 
          CZ1900000              m-Phthalodinitrile                                   
          CZ4500000              o-Dichlorobenzene                                    
          CZ4550000              p-Dichlorobenzene                                    
          CZ6300000              Toluene-2,4-diisocyanate                             
          CZ7350000              m-Dinitrobenzene                                     
          CZ7450000              o-Dinitrobenzene                                     
          CZ7525000              p-Dinitrobenzene                                     
          CZ9370000              Divinyl benzene                                      
          DA0700000              Ethyl benzene                                        
          DA6475000              Nitrobenzene                                         
          DC0525000              Benzenethiol                                         
          DC2050000              Trimellitic anhydride                                
          DC2100000              1,2,4-Trichlorobenzene                               
          DC3300000              1,2,3-Trimethylbenzene                               
          DC3325000              1,2,4-Trimethylbenzene                               
          DC9625000              Benzidine                                            
          DD0525000              3,3'-Dichlorobenzidine (and its salts)               
          DD0875000              o-Dianisidine                                        
          DD1225000              o-Tolidine                                           
          DD6475000              Benomyl                                              
          DE3030000              Naphtha (coal tar)                                   
          DJ2800000              Rotenone                                             
          DK2625000              Quinone                                              
          DM8575000              Benzoyl peroxide                                     
          DS1750000 (metal)      Beryllium & beryllium compounds (as Be)              
          DU8050000              Diphenyl                                             
          DU8925000              4-Aminodiphenyl                                      
          DV1500000              Phenyl ether-biphenyl mixture (vapor)                
          DV5600000              4-Nitrobiphenyl                                      
          DW2275000              Paraquat (Paraquat dichloride)                       
          EB3110000              Bismuth telluride, undoped                           
          ED2275000              Boron trifluoride                                    
          ED4588000              Borates, tetra, sodium salts (Anhydrous)             
          ED7400000              Boron tribromide                                     
          ED7900000              Boron oxide                                          
          EF9100000              Bromine                                              
          EF9350000              Bromine pentafluoride                                
          EI9275000              1,3-Butadiene                                        
          EI9625000              beta-Chloroprene                                     
          EJ0700000              Hexachlorobutadiene                                  
          EJ4200000              n-Butane                                             
          EK6300000              n-Butyl mercaptan                                    
          EL5425000              Isoamyl alcohol (primary)                            
          EL6475000              2-Butanone                                           
          EL9100000              Methyl isopropyl ketone                              
          EL9450000              Methyl ethyl ketone peroxide                         
          EO1400000              n-Butyl alcohol                                      
          EO1750000              sec-Butyl alcohol                                    
          EO1925000              tert-Butyl alcohol                                   
          EO2975000              n-Butylamine                                         
          ET8750000              n-Butyronitrile                                      
          EU9800000 (metal)      Cadmium dust (as Cd)                                 
          EV1930000 (CdO)        Cadmium fume (as Cd)                                 
          EV9580000              Calcium carbonate                                    
          EV9580000              Limestone                                            
          EV9580000              Marble                                               
          EW2800000              Calcium hydroxide                                    
          EW3100000              Calcium oxide                                        
          EX1225000              Camphor (synthetic)                                  
          FB9450000              Carbofuran                                           
          FC3150000              Propoxur                                             
          FC5950000              Carbaryl                                             
          FD4200000              Dimethyl carbamoyl chloride                          
          FF5250100 (synthetic)  Graphite (synthetic)                                 
          FF5800000              Carbon black                                         
          FF6400000              Carbon dioxide                                       
          FF6650000              Carbon disulfide                                     
          FG3500000              Carbon monoxide                                      
          FG4725000              Carbon tetrabromide                                  
          FG4900000              Carbon tetrachloride                                 
          FG6125000              Carbonyl fluoride                                    
          FJ5691460              Cellulose                                            
          FK9800000              Cesium hydroxide                                     
          FO2100000              Chlorine                                             
          FO2800000              Chlorine trifluoride                                 
          FO3000000              Chlorine dioxide                                     
          FS9100000              Chloroform                                           
          GB2900000              tert-Butyl chromate                                  
          GB4200000              Chromium metal                                       
          GB5775000              Chromyl chloride                                     
          GB6650000 (CrO3)       Chromic acid and chromates                           
          GF1670500              Kaolin                                               
          GF8281000              Coal dust                                            
          GF8655000              Coal tar pitch volatiles                             
          GF8750000              Cobalt metal dust and fume (as Co)                   
          GG0300000              Cobalt carbonyl (as Co)                              
          GG0900000              Cobalt hydrocarbonyl (as Co)                         
          GH0346000              Coke oven emissions                                  
          GL5325000              Copper (dusts and mists, as Cu)                      
          GL7900000 (CuO)        Copper fume (as Cu)                                  
          GM5090000              Starch                                               
          GN0231000 (corundum)   Emery                                                
          GN2275000              Cotton dust (raw)                                    
          GN4550000              Warfarin                                             
          GO6125000              m-Cresol                                             
          GO6300000              o-Cresol                                             
          GO6475000              p-Cresol                                             
          GO7875000              2,6-Di-tert-butyl-p-cresol                           
          GO9625000              Dinitro-o-cresol                                     
          GP3150000              4,4'-Thiobis(6-tert-butyl-m-cresol)                  
          GP9499000              Crotonaldehyde                                       
          GQ5250000              Phosdrin                                             
          GR8575000              Cumene                                               
          GS5950000              Cyanamide                                            
          GS6000000              Calcium cyanamide                                    
          GT1925000              Cyanogen                                             
          GT2275000              Cyanogen chloride                                    
          GU6300000              Cyclohexane                                          
          GV4900000              Lindane                                              
          GV6125000              Methylcyclohexane                                    
          GV7525000              Cyclohexanethiol                                     
          GV7875000              Cyclohexanol                                         
          GW0175000              Methylcyclohexanol                                   
          GW1050000              Cyclohexanone                                        
          GW1750000              o-Methylcyclohexanone                                
          GW2500000              Cyclohexene                                          
          GW4900000              Captafol                                             
          GW5075000              Captan                                               
          GW7700000              Isophorone                                           
          GX0700000              Cyclohexylamine                                      
          GY1000000              Cyclopentadiene                                      
          GY1225000              Hexachlorocyclopentadiene                            
          GY2390000              Cyclopentane                                         
          HD1400000              Decaborane                                           
          HP3500000              2,3,7,8-Tetrachloro-dibenzo-p-dioxin                 
          HQ9275000              Diborane                                             
          HZ1755000              Diesel exhaust                                       
          HZ8750000              Diethylamine                                         
          IE1225000              Diethylenetriamine                                   
          IM4025000              Diisopropylamine                                     
          IO1575000              Endrin                                               
          IO1750000              Dieldrin                                             
          IO2100000              Aldrin                                               
          IP8750000              Dimethylamine                                        
          IQ0525000              N-Nitrosodimethylamine                               
          JG8225000              Dioxane                                              
          JJ7800000              Diphenylamine                                        
          JM1575000              Dipropylene glycol methyl ether                      
          JM5690000              Diquat (Diquat dibromide)                            
          JO0350000              Allyl propyl disulfide                               
          JO1225000              Disulfiram                                           
          JO1400000              Thiram                                               
          JR3155000              1-Dodecanethiol                                      
          KH2100000              Ethylamine                                           
          KH6475000              Ethyl bromide                                        
          KH6550000              Halothane                                            
          KH7525000              Ethyl chloride                                       
          KH7877500              Chloropentafluoroethane                              
          KH8575000              Ethylenediamine                                      
          KH9275000              Ethylene dibromide                                   
          KI0175000              1,1-Dichloroethane                                   
          KI0525000              Ethylene dichloride                                  
          KI1050000              1,1-Dichloro-1-nitroethane                           
          KI1101000              Dichlorotetrafluoroethane                            
          KI1420000              1,1,2,2-Tetrachloro-1,2-difluoroethane               
          KI1425000              1,1,1,2-Tetrachloro-2,2-difluoroethane               
          KI4025000              Hexachloroethane                                     
          KI5600000              Nitroethane                                          
          KI5775000              Ethyl ether                                          
          KI6300000              Pentachloroethane                                    
          KI8225000              Acetylene tetrabromide                               
          KI8450000              1,1,1,2-Tetrachloroethane                            
          KI8575000              1,1,2,2-Tetrachloroethane                            
          KI9625000              Ethyl mercaptan                                      
          KJ2975000              Methyl chloroform                                    
          KJ3150000              1,1,2-Trichloroethane                                
          KJ3325000              DDT                                                  
          KJ3675000              Methoxychlor                                         
          KJ4000000              1,1,2-Trichloro-1,2,2-trifluoroethane                
          KJ5775000              Ethanolamine                                         
          KJ8575000              2-Butoxyethanol                                      
          KJ8925000              2-Butoxyethanol acetate                              
          KK0875000              Ethylene chlorohydrin                                
          KK3850000              2-N-Dibutylaminoethanol                              
          KK4900000              Crag® herbicide                                      
          KK5075000              2-Diethylaminoethanol                                
          KK8050000              2-Ethoxyethanol                                      
          KK8225000              2-Ethoxyethyl acetate                                
          KL2975000              Diethanolamine                                       
          KL5075000              2-Isopropoxyethanol                                  
          KL5775000              Methyl Cellosolve®                                   
          KL5950000              Methyl Cellosolve® acetate                           
          KN0875000              Dichloroethyl ether                                  
          KN1575000              bis-Chloromethyl ether                               
          KN2350000              Diglycidyl ether                                     
          KN6650000              Chloromethyl methyl ether                            
          KN6800000              Enflurane                                            
          KN7820000              Methoxyflurane                                       
          KN8970000              Phenyl ether (vapor)                                 
          KO4250000              Fluoroxene                                           
          KQ6300000              Ethyl alcohol                                        
          KR9460000              bis(2-(Dimethylamino)ethyl)ether                     
          KU8400000              Vinyl bromide                                        
          KU9625000              Vinyl chloride                                       
          KV9275000              Vinylidene chloride                                  
          KV9360000              1,2-Dichloroethylene                                 
          KW0560000              Vinylidene fluoride                                  
          KW2975000              Ethylene glycol                                      
          KW5600000              Ethylene glycol dinitrate                            
          KX2450000              Ethylene oxide                                       
          KX3850000              Tetrachloroethylene                                  
          KX4550000              Trichloroethylene                                    
          KX5075000              Ethyleneimine                                        
          LK0700000              Dicyclopentadienyl iron                              
          LK2900000              Ferrovanadium dust                                   
          LK3651000              Fibrous glass dust                                   
          LM6475000              Fluorine                                             
          LP8925000              Formaldehyde                                         
          LQ0525000              Formamide                                            
          LQ2100000              Dimethylformamide                                    
          LQ4900000              Formic acid                                          
          LQ8400000              Ethyl formate                                        
          LQ8925000              Methyl formate                                       
          LT7000000              Furfural                                             
          LU5950000              Tetrahydrofuran                                      
          LU9100000              Furfuryl alcohol                                     
          LX3300000              Gasoline                                             
          LY4900000              Germanium tetrahydride                               
          MA2450000              Glutaraldehyde                                       
          MA8050000              Glycerin (mist)                                      
          MD7900000              Grain dust (oat, wheat, barley)                      
          MD9659600              Graphite (natural)                                   
          MG2360000              Gypsum                                               
          MG4600000              Hafnium                                              
          MI7700000              n-Heptane                                            
          MJ1400000              1-Heptanethiol                                       
          MJ5075000              Methyl (n-amyl) ketone                               
          MJ5250000              Ethyl butyl ketone                                   
          MJ5600000              Dipropyl ketone                                      
          MJ5775000              Diisobutyl ketone                                    
          MJ7350000              5-Methyl-3-heptanone                                 
          MN9275000              n-Hexane                                             
          MO1740000              Hexamethylene diisocyanate                           
          MO4550000              n-Hexanethiol                                        
          MP1400000              2-Hexanone                                           
          MP3850000              Methyl isoamyl ketone                                
          MU0700000              1,3-Dichloro-5,5-dimethylhydantoin                   
          MU7175000              Hydrazine                                            
          MV2450000              1,1-Dimethylhydrazine                                
          MV5600000              Methyl hydrazine                                     
          MV8925000              Phenylhydrazine                                      
          MW3850000              Hydrogen bromide                                     
          MW4025000              Hydrogen chloride                                    
          MW6825000              Hydrogen cyanide                                     
          MW7875000              Hydrogen fluoride                                    
          MX0900000              Hydrogen peroxide                                    
          MX1050000              Hydrogen selenide                                    
          MX1225000              Hydrogen sulfide                                     
          MX3500000              Hydroquinone                                         
          NI9625000              Ethylene thiourea                                    
          NK6300000              Pindone                                              
          NK8225000              Indene                                               
          NL1050000              Indium                                               
          NN1575000              Iodine                                               
          NO4900000              Iron pentacarbonyl (as Fe)                           
          NO7400000              Iron oxide dust and fume (as Fe)                     
          NO7400000              Rouge                                                
          NO7525000 (fume)       Iron oxide dust and fume (as Fe)                     
          NO8750000              Ferbam                                               
          NP9625000              Isobutyl alcohol                                     
          NQ9250000              Methylene bis(4-cyclohexylisocyanate)                
          NQ9350000              Methylene bisphenyl isocyanate                       
          NQ9370000              Isophorone diisocyanate                              
          NQ9450000              Methyl isocyanate                                    
          NQ9600000              Naphthalene diisocyanate                             
          NS7700000              Isooctyl alcohol                                     
          NS9800000              Isoamyl acetate                                      
          NT8050000              Isopropyl alcohol                                    
          NT8400000              Isopropylamine                                       
          OA5500000              Kerosene                                             
          OA7700000              Ketene                                               
          OD4025000              n-Butyl lactate                                      
          OD9275000              Acetone cyanohydrin                                  
          OF7525000              Lead                                                 
          OI6180000              VM & P Naphtha                                       
          OJ6300000              Lithium hydride                                      
          OM2470000              Magnesite                                            
          OM3850000              Magnesium oxide fume                                 
          ON3675000              Maleic anhydride                                     
          OO3150000              Malononitrile                                        
          OO3675000              o-Chlorobenzylidene malononitrile                    
          OO9275000 (metal)      Manganese compounds and fume (as Mn)                 
          OO9720000              Manganese cyclopentadienyl tricarbonyl (as Mn)       
          OP0895000              Manganese tetroxide (as Mn)                          
          OP1450000              Methyl cyclopentadienyl manganese tricarbonyl (as Mn)
          OV4550000 (metal)      Mercury compounds [except (organo) alkyls] (as Hg)   
          OX6825000              1,3,5-Trimethylbenzene                               
          OZ2975000              Methacrylic acid                                     
          OZ5075000              Methyl methacrylate                                  
          PA0350000              Trimethylamine                                       
          PA4900000              Methyl bromide                                       
          PA5250000              Chlorobromomethane                                   
          PA5425000              Trifluorobromomethane                                
          PA6300000              Methyl chloride                                      
          PA6390000              Chlorodifluoromethane                                
          PA7000000              Diazomethane                                         
          PA7525000              Difluorodibromomethane                               
          PA8050000              Methylene chloride                                   
          PA8200000              Dichlorodifluoromethane                              
          PA8400000              Dichloromonofluoromethane                            
          PA8750000              Methylal                                             
          PA9450000              Methyl iodide                                        
          PA9800000              Nitromethane                                         
          PB0370000              Perchloromethyl mercaptan                            
          PB4025000              Tetranitromethane                                    
          PB4375000              Methyl mercaptan                                     
          PB5600000              Bromoform                                            
          PB6125000              Fluorotrichloromethane                               
          PB6300000              Chloropicrin                                         
          PB7000000              Iodoform                                             
          PB9800000              Chlordane                                            
          PC0700000              Heptachlor                                           
          PC1050000              Dicyclopentadiene                                    
          PC1400000              Methyl alcohol                                       
          PC8575000              Kepone                                               
          PF6300000              Methylamine                                          
          PF8970000              m-Xylene-alpha,alpha'-diamine                        
          PY8030000              Oil mist (mineral)                                   
          PY8070000              Mineral wool fiber                                   
          QA4680000              Molybdenum                                           
          QD6475000              Morpholine                                           
          QE4025000              N-Ethylmorpholine                                    
          QJ0525000              Naphthalene                                          
          QJ7350000              Hexachloronaphthalene                                
          QJ9760000              2-Nitronaphthalene                                   
          QK0250000              Octachloronaphthalene                                
          QK0300000              Pentachloronaphthalene                               
          QK3700000              Tetrachloronaphthalene                               
          QK4025000              Trichloronaphthalene                                 
          QM1400000              alpha-Naphthylamine                                  
          QM2100000              beta-Naphthylamine                                   
          QM4550000              N-Phenyl-β-naphthylamine                             
          QR3900000              Niax® Catalyst ESN                                   
          QR5950000 (Metal)      Nickel metal and other compounds (as Ni)             
          QR6300000              Nickel carbonyl                                      
          QS5250000              Nicotine                                             
          QU5775000              Nitric acid                                          
          QW9800000              Nitrogen dioxide                                     
          QX0525000              Nitric oxide                                         
          QX1350000              Nitrous oxide                                        
          QX1925000              Nitrogen trifluoride                                 
          QX2100000              Nitroglycerine                                       
          RA6115000              Nonane                                               
          RB9275000              Endosulfan                                           
          RB9450000              Ethylidene norbornene                                
          RG8400000              Octane                                               
          RN1140000              Osmium tetroxide                                     
          RN8640000              Vinyl cyclohexene dioxide                            
          RO2450000              Oxalic acid                                          
          RP5425000              Propane sultone                                      
          RQ7350000              beta-Propiolactone                                   
          RR0875000              Allyl glycidyl ether                                 
          RS2100000              Oxygen difluoride                                    
          RS8225000              Ozone                                                
          RV0350000              Paraffin wax fume                                    
          RY8925000              Pentaborane                                          
          RZ2490000              Pentaerythritol                                      
          RZ9450000              n-Pentane                                            
          SA0810000              Hexylene glycol                                      
          SA3150000              1-Pentanethiol                                       
          SA4900000              Isoamyl alcohol (secondary)                          
          SA7350000              Methyl isobutyl carbinol                             
          SA7525000              sec-Hexyl acetate                                    
          SA7875000              2-Pentanone                                          
          SA8050000              Diethyl ketone                                       
          SA9100000              Diacetone alcohol                                    
          SA9275000              Hexone                                               
          SB4200000              Mesityl oxide                                        
          SD1925000              Perchloryl fluoride                                  
          SD5254000              Perlite                                              
          SE7449000              Petroleum distillates (naphtha)                      
          SE7545000              L.P.G.                                               
          SJ3325000              Phenol                                               
          SJ8920000              o-sec-Butylphenol                                    
          SL7700000              4-Methoxyphenol                                      
          SM6300000              Pentachlorophenol                                    
          SN5075000              Phenothiazine                                        
          SS8050000              p-Phenylene diamine                                  
          SY5600000              Phosgene                                             
          SY7525000              Phosphine                                            
          SZ2100000              Phenylphosphine                                      
          TA5950000              Fonofos                                              
          TB1925000              EPN                                                  
          TB3675000              Fenamiphos                                           
          TB3850000              Crufomate                                            
          TB6125000              Phosphorus pentachloride                             
          TB6300000              Phosphoric acid                                      
          TB9450000              Dimethyl-1,2-dibromo-2,2-dichlorethyl phosphate      
          TB9605000              Dibutyl phosphate                                    
          TC0350000              Dichlorvos                                           
          TC3850000              Dicrotophos                                          
          TC4375000              Monocrotophos                                        
          TC7700000              Tributyl phosphate                                   
          TC8400000              Triphenyl phosphate                                  
          TD0350000              Triorthocresyl phosphate                             
          TD0875000              Hexamethyl phosphoramide                             
          TD9275000              Disulfoton                                           
          TD9450000              Phorate                                              
          TE1925000              Azinphos-methyl                                      
          TE3350000              Dioxathion                                           
          TE4165000              Sulprofos                                            
          TE4550000              Ethion                                               
          TF3150000              Demeton                                              
          TF3325000              Diazinon®                                            
          TF3850000              Fensulfothion                                        
          TF4550000              Parathion                                            
          TF6300000              Chlorpyrifos                                         
          TF6890000              Temephos                                             
          TF9625000              Fenthion                                             
          TG0175000              Methyl parathion                                     
          TG0525000              Ronnel                                               
          TG1760000              Methyl demeton                                       
          TH1400000              Trimethyl phosphite                                  
          TH3500000              Phosphorus (yellow)                                  
          TH3675000              Phosphorus trichloride                               
          TH4375000              Phosphorus pentasulfide                              
          TH4897000              Phosphorus oxychloride                               
          TI0350000              Di-sec octyl phthalate                               
          TI0875000              Dibutyl phthalate                                    
          TI1050000              Diethyl phthalate                                    
          TI1575000              Dimethylphthalate                                    
          TI3150000              Phthalic anhydride                                   
          TJ7525000              Picloram                                             
          TJ7875000              Picric acid                                          
          TL4025000              Piperazine dihydrochloride                           
          TP0700000              Plaster of Paris                                     
          TP2160000              Platinum                                             
          TP4550000              Tetraethyl lead (as Pb)                              
          TP4725000              Tetramethyl lead (as Pb)                             
          TQ1356000              Chlorodiphenyl (42% chlorine)                        
          TQ1360000              Chlorodiphenyl (54% chlorine)                        
          TS8750000              Potassium cyanide (as CN)                            
          TT2100000              Potassium hydroxide                                  
          TX2275000              Propane                                              
          TX4200000              n-Butyl glycidyl ether                               
          TX4900000              Epichlorohydrin                                      
          TX5075000              1-Chloro-1-nitropropane                              
          TX6475000              Malonaldehyde                                        
          TX8750000              1,2-Dibromo-3-chloropropane                          
          TX9625000              Propylene dichloride                                 
          TY6300000              Propylene glycol dinitrate                           
          TZ2975000              Propylene oxide                                      
          TZ3500000              Isopropyl glycidyl ether                             
          TZ3675000              Phenyl glycidyl ether                                
          TZ4300000              Isobutane                                            
          TZ4900000              Isobutyronitrile                                     
          TZ5075000              1-Nitropropane                                       
          TZ5250000              2-Nitropropane                                       
          TZ5425000              Isopropyl ether                                      
          TZ7300000              1-Propanethiol                                       
          TZ9275000              1,2,3-Trichloropropane                               
          UB4375000              Glycidol                                             
          UB7700000              Propylene glycol monomethyl ether                    
          UC2450000              Hexafluoroacetone                                    
          UC7350000              Allyl chloride                                       
          UC8310000              1,3-Dichloropropene                                  
          UD1400000              Methylacrylonitrile                                  
          UD3150000              Butyl acrylate                                       
          UE5950000              Propionic acid                                       
          UF0690000              2,2-Dichloropropionic acid                           
          UF9625000              Propionitrile                                        
          UG1575000              Dimethylaminopropionitrile                           
          UH8225000              n-Propyl alcohol                                     
          UK0350000              n-Propyl nitrate                                     
          UK4250000              Methyl acetylene                                     
          UK4920000              Methyl acetylene-propadiene mixture                  
          UK5075000              Propargyl alcohol                                    
          UR4200000              Pyrethrum                                            
          UR8400000              Pyridine                                             
          US1575000              2-Aminopyridine                                      
          US7525000              2-Chloro-6-trichloromethyl pyridine                  
          UU7711500              Clopidol                                             
          UX1050000              Catechol                                             
          UX6825000              TEPP                                                 
          UX7350000              Tetrasodium pyrophosphate                            
          UX8225000              Sodium metabisulfite                                 
          VG9625000              Resorcinol                                           
          VI9069000 (metal)      Rhodium (metal fume and insoluble compounds, as Rh)  
          VO0700000              Acetylsalicylic acid                                 
          VS7700000              Selenium                                             
          VS9450000              Selenium hexafluoride                                
          VV1400000              Silicon tetrahydride                                 
          VV7310000              Silica, amorphous                                    
          VV7330000              Silica, crystalline (as respirable dust)             
          VV8760000              Mica (containing less than 1% quartz)                
          VV8770000              Portland cement                                      
          VV8780000              Soapstone (containing less than 1% quartz)           
          VV9150000              Calcium silicate                                     
          VV9450000              Ethyl silicate                                       
          VV9800000              Methyl silicate                                      
          VW0400000              Silicon                                              
          VW0450000              Silicon carbide                                      
          VW3500000 (metal)      Silver (metal dust and soluble compounds, as Ag)     
          VY8050000              Sodium azide                                         
          VZ2000000              Sodium bisulfite                                     
          VZ2275000              Borates, tetra, sodium salts (Decahydrate)           
          VZ2540000              Borates, tetra, sodium salts (Pentahydrate)          
          VZ7525000              Sodium cyanide (as CN)                               
          WA9625000              Sodium aluminum fluoride (as F)                      
          WB0350000              Sodium fluoride (as F)                               
          WB4900000              Sodium hydroxide                                     
          WH8750000              Cyhexatin                                            
          WJ0700000              Stibine                                              
          WJ8925000              Stoddard solvent                                     
          WL2275000              Strychnine                                           
          WL3675000              Styrene                                              
          WL4160000              o-Chlorostyrene                                      
          WL5075000              Vinyl toluene                                        
          WL5075300              alpha-Methyl styrene                                 
          WM8400000              Malathion                                            
          WN3850000              Succinonitrile                                       
          WN4025000              Tetramethyl succinonitrile                           
          WN6500000              Sucrose                                              
          WO6125000              Ammonium sulfamate                                   
          WS4300000              Sulfur monochloride                                  
          WS4480000              Sulfur pentafluoride                                 
          WS4550000              Sulfur dioxide                                       
          WS4900000              Sulfur hexafluoride                                  
          WS5600000              Sulfuric acid                                        
          WS6920000              Calcium sulfate                                      
          WS8225000              Dimethyl sulfate                                     
          WT4800000              Sulfur tetrafluoride                                 
          WT5075000              Sulfuryl fluoride                                    
          WW2710000              Talc (containing no asbestos and less than 1% quartz)
          WW5505000 (metal)      Tantalum (metal and oxide dust, as Ta)               
          WY2625000              Tellurium                                            
          WY2800000              Tellurium hexafluoride                               
          WZ6470000              m-Terphenyl                                          
          WZ6472000              o-Terphenyl                                          
          WZ6475000              p-Terphenyl                                          
          WZ6535000              Hydrogenated terphenyls                              
          XM5150000              Thionyl chloride                                     
          XN4375000              TEDP                                                 
          XP7320000              Tin                                                  
          XQ3700000              Tin(II) oxide (as Sn)                                
          XQ4000000              Tin(IV) oxide (as Sn)                                
          XR2275000              Titanium dioxide                                     
          XS4200000              Dinitolmide                                          
          XS5250000              Toluene                                              
          XS8400000              p-tert-Butyltoluene                                  
          XS8925000              Benzyl chloride                                      
          XS9000000              o-Chlorotoluene                                      
          XS9445000              Toluenediamine                                       
          XS9625000 (2,4-TDA)    Toluenediamine                                       
          XT1300000              Dinitrotoluene                                       
          XT2975000              m-Nitrotoluene                                       
          XT3150000              o-Nitrotoluene                                       
          XT3325000              p-Nitrotoluene                                       
          XU0175000              2,4,6-Trinitrotoluene                                
          XU2800000              m-Toluidine                                          
          XU2975000              o-Toluidine                                          
          XU3150000              p-Toluidine                                          
          XW5250000              Chlorinated camphene                                 
          XY5600000              Atrazine                                             
          XY9450000              Cyclonite                                            
          XZ2990000              Metribuzin                                           
          XZ3850000              Amitrole                                             
          YE0175000              Triethylamine                                        
          YK2680000              Triphenylamine                                       
          YO7175000              Tungsten                                             
          YO7350000              Tungsten carbide (cemented)                          
          YO7525000              Tungsten carbide (cemented)                          
          YO7700000              Tungsten carbide (cemented)                          
          YO8400000              Turpentine                                           
          YQ9100000              Bromacil                                             
          YR3490000 (metal)      Uranium (insoluble compounds, as U)                  
          YS8925000              Diuron                                               
          YT9275000              ANTU                                                 
          YV3600000              n-Valeraldehyde                                      
          YW2450000              Vanadium dust                                        
          YW2460000              Vanadium fume                                        
          YX1850000              Vegetable oil mist                                   
          YZ7351000              Vinyl fluoride                                       
          ZC2550000              Welding fumes                                        
          ZC9850000              Wood dust                                            
          ZE2275000              m-Xylene                                             
          ZE2450000              o-Xylene                                             
          ZE2625000              p-Xylene                                             
          ZE8575000              Xylidine                                             
          ZG2980000              Yttrium                                              
          ZH1400000              Zinc chloride fume                                   
          ZH4810000              Zinc oxide                                           
          ZH5200000              Zinc stearate                                        
          ZH7070000 (Metal)      Zirconium compounds (as Zr)                          
        Page last reviewed: October 17, 2018
          Content source: National Institute for Occupational Safety and Health
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