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Original site: www.cdc.gov/niosh-rtecs/KN657890.html | RestoredCDC.org is an independent project, not affiliated with CDC or any federal entity. Visit CDC.gov for free official information. Due to archival on January 6, 2025, recent outbreak data is unavailable. Videos are not restored. Access data.restoredcdc.org for restored data. Use of this site implies acceptance of this disclaimer.[More]About Us Report Bug Compare ContentSkip directly to page optionsThe National Institute for Occupational Safety and Health (NIOSH)Centers for Disease Control and Prevention. CDC twenty four seven. Saving Lives, Protecting PeopleSearchSearch Menu Navigation Menu× NIOSHNIOSH All CDCSubmit* Licensing Agreement Signed for RTECS* How Do I Access the RTECS Database?* Features of the RTECS Database* The National Institute for Occupational Safety and Health (NIOSH) HomeThe National Institute for Occupational Safety and Health (NIOSH)1. Registry of Toxic Effects of Chemical Substances (RTECS)Ether, chloromethyl methylRelated PagesRTECS #KN6650000CAS #107-30-2See: NMAM or OSHA MethodsUpdatedDecember 2018Molecular Weight80.52Molecular FormulaC2H5ClOSynonymsChlordimethylether (Czech)Chloromethyl methyl etherChloromethyl methyl ether (ACGIH:OSHA)Chloromethyl methyl ether, technical gradeCMMEDimethylchloroetherEther methylique monochlore (French)Ether, dimethyl chloroMethoxychloromethaneMethylchloromethyl etherMonochlorodimethyl etherRCRA waste number U046Mutation Data and ReferenceSystem Test Route/Organism/Tissue Dose ReferenceDNA inhibition lymphocyte/human 5 mL/L CALEDQ 13,213,1981morphological transform embryo/hamster 10 mg/L AETODY 1,241,1980Tumorigenic Data and ReferencesRoute/Organism Dose Effect ReferenceTumorigenic: Equivocal tumorigenic agent by RTECS criteriainhalation/hamster lowest published toxic concentration: 1 ppm/6H/90D AEHLAU 30,70,1975Lung, Thorax, or Respiration: TumorsTumorigenic: Equivocal tumorigenic agent by RTECS criteriainhalation/hamster lowest published toxic concentration: 1 ppm/852D- intermittent Lung, Thorax, or Respiration: Bronchogenic carcinoma HPV174 -,-,2003Tumorigenic: Increased incidence of tumors in susceptible strainsTumorigenic: Neoplastic by RTECS criteriainhalation/mouse lowest published toxic concentration: 2 ppm/21W- intermittent Lung, Thorax, or Respiration: Tumors HPV174 -,-,2003Tumorigenic: Increased incidence of tumors in susceptible strainsTumorigenic: Equivocal tumorigenic agent by RTECS criteriainhalation/mouse lowest published toxic concentration: 2 ppm/82D- intermittent AEHLAU 22,663,1971Lung, Thorax, or Respiration: TumorsTumorigenic: Equivocal tumorigenic agent by RTECS criteriainhalation/rat lowest published toxic concentration: 1 ppm/6H/72W Lung, Thorax, or Respiration: Tumors AEHLAU 30,70,1975Endocrine: TumorsTumorigenic: Equivocal tumorigenic agent by RTECS criteriainhalation/rat lowest published toxic concentration: 1 ppm/852D- intermittent Lung, Thorax, or Respiration: Bronchogenic carcinoma HPV174 -,-,2003Tumorigenic: Increased incidence of tumors in susceptible strainsTumorigenic: Equivocal tumorigenic agent by RTECS criteriasubcutaneous/mouse lowest published toxic dose: 5 ml/kg Lung, Thorax, or Respiration: Tumors HPV174 -,-,2003Tumorigenic: Increased incidence of tumors in susceptible strainsTumorigenic: Neoplastic by RTECS criteriasubcutaneous/mouse lowest published toxic dose: 312 mg/kg/26W- intermittent JNCIAM 46,143,1971Tumorigenic: Tumors at site of applicationTumorigenic: Neoplastic by RTECS criteriasubcutaneous/mouse toxic dose: 852 mg/kg/71W- intermittent JNCIAM 48,1431,1972Tumorigenic: Tumors at site of applicationTumorigenic: Equivocal tumorigenic agent by RTECS criteriasubcutaneous/mouse toxic dose: 125 mg/kg TXAPA9 15,92,1969Lung, Thorax, or Respiration: TumorsAcute Toxicity Data and ReferencesRoute/Organism Dose Effect ReferenceLung, Thorax, or Respiration: Chronic pulmonary edema or congestioninhalation/hamster lethal concentration (50 percent kill): 65 ppm/7H AEHLAU 30,61,1975Blood: HemorrhageLung, Thorax, or Respiration: Acute pulmonary edemainhalation/hamster lethal concentration (50 percent kill): 212.5 mg/m3/7H VCVGK* -,278,1994Lung, Thorax, or Respiration: Other changesinhalation/mouse Lowest published lethal concentration: 330 mg/m3/2H VCVGK* -,278,1994inhalation/mouse lethal concentration (50 percent kill): 1030 mg/m3/2H 85GMAT -,89,1982inhalation/rabbit lowest published toxic concentration: 9 mg/m3 Lung, Thorax, or Respiration: Cough VCVGK* -,278,1994inhalation/rabbit lowest published toxic concentration: 27 mg/m3 Behavioral: Alteration of classical conditioning VCVGK* -,278,1994Lung, Thorax, or Respiration: Chronic pulmonary edema or congestioninhalation/rat lethal concentration (50 percent kill): 55 ppm/7H AEHLAU 30,61,1975Blood: HemorrhageLung, Thorax, or Respiration: Acute pulmonary edemainhalation/rat lethal concentration (50 percent kill): 179.8 mg/m3/7H VCVGK* -,278,1994Lung, Thorax, or Respiration: Other changesLung, Thorax, or Respiration: Acute pulmonary edemainhalation/rat lethal concentration (50 percent kill): 55 ppm/7H HPV174 -,-,2003Lung, Thorax, or Respiration: Changes in lung weightoral/rat lowest published lethal dose: 1000 mg/kg HPV174 -,-,2003oral/rat lethal dose (50 percent kill): 223 mg/kg HPV174 -,-,2003Other Multiple Dose Data and ReferencesRoute/Organism Dose Effect Referenceinhalation/mouse lowest published toxic concentration: 6 mg/m3/130D- intermittent Lung, Thorax, or Respiration: Tumors VCVGK* -,278,1994Lung, Thorax, or Respiration: Other changesinhalation/rabbit lowest published toxic concentration: 3 mg/m3/5H/90D- intermittent Liver: Other changes VCVGK* -,278,1994Nutritional and Gross Metabolic: Weight loss or decreased weight gainLung, Thorax, or Respiration: Structural or functional change in trachea or bronchiinhalation/rat lowest published toxic concentration: 32.7 mg/m3/30D- intermittent VCVGK* -,278,1994Related to Chronic Data: Death in the "MULTIPLE DOSE" data type fieldLung, Thorax, or Respiration: Structural or functional change in trachea or bronchiinhalation/rat lowest published toxic concentration: 3.27 mg/m3/130W- continuous VCVGK* -,278,1994Skin and Appendages: TumorsLung, Thorax, or Respiration: Structural or functional change in trachea or bronchiinhalation/rat lowest published toxic concentration: 10 ppm/3D- intermittent Lung, Thorax, or Respiration: Other changes HPV174 -,-,2003Related to Chronic Data: Death in the "MULTIPLE DOSE" data type fieldReviewsOrganization Standard ReferenceAmerican Conference of Governmental Industrial Hygienists (ACGIH) Threshold Limit Value-Control as low as possible DTLVS* TLV/BEI,2013American Conference of Governmental Industrial Hygienists (ACGIH) Threshold Limit Value-Suspected human carcinogen DTLVS* TLV/BEI,2013International Agency for Research on Cancer (IARC) Cancer Review:Human Sufficient Evidence IMEMDT 4,239,1974International Agency for Research on Cancer (IARC) Cancer Review:Animal Sufficient Evidence IMEMDT 4,239,1974International Agency for Research on Cancer (IARC) Cancer Review:Animal Limited Evidence IMEMDT 100F,306,2012International Agency for Research on Cancer (IARC) Cancer Review:Human Sufficient Evidence IMEMDT 100F,306,2012International Agency for Research on Cancer (IARC) Cancer Review:Group 1 IMSUDL 7,131,1987International Agency for Research on Cancer (IARC) Cancer Review:Group 1 IMEMDT 100F,306,2012TOXICOLOGY REVIEW EESADV 1,289,1977TOXICOLOGY REVIEW MUREAV 566,21,2004TOXICOLOGY REVIEW FCTOD7 44,1699,2006TOXICOLOGY REVIEW MUREAV 584,1,2005TOXICOLOGY REVIEW MUREAV 733,39,2012TOXICOLOGY REVIEW MUREAV 802,1,2016TOXICOLOGY REVIEW RTOPDW 54,247,2009Standards and RegulationsOrganization Standard ReferenceOccupational Exposure Limit IN ARGENTINA, BULGARIA, COLOMBIA, JORDAN check ACGIH TLV;Occupational Exposure Limit IN SINGAPORE, VIETNAM check ACGIH TLVOccupational Exposure Limit-AUSTRALIA Carcinogen, JUL2008Occupational Exposure Limit-JAPAN 2A carc, MAY2012Occupational Exposure Limit-RUSSIA short term exposure limit 0.5 mg/m3, Skin, JUN2003Occupational Exposure Limit-SWEDEN Group A Carcinogen, JUN2005Occupational Exposure Limit-SWITZERLAND carc 1, JAN2011Occupational Safety and Health Administration (OSHA) Permissible Exposure Limit (Construction) see Code of Federal Regulations (CFR) 29,1926.1108 CFRGBR 29,1926.55,1994Occupational Safety and Health Administration (OSHA)-cancer suspect agent CFRGBR 29,1910.1006,1987NIOSH Documentation and SurveillanceOrganization Standard ReferenceNational Institute for Occupational Safety and Health (NIOSH) Recommended Exposure Level TO CHLOROMETHYL METHYL ETHER-air Carcinogen use 29 Code of Federal Regulations (CFR) 1910.1006 NIOSH* DHHS #92-100,1992Status in Federal AgenciesOrganization ReferenceEPA GENETOX PROGRAM 1988, Positive/limited: Carcinogenicity-mouse/ratEPA GENETOX PROGRAM 1988, Positive: Cell transform.-SA7/SHEEPA TSCA Section 8(b) CHEMICAL INVENTORYEPA TSCA Section 8(d) unpublished health/safety studiesEPA TSCA TEST SUBMISSION (TSCATS) DATA BASE, JANUARY 2001NTP 14th Report on Carcinogens,2016:Known to be a human carcinogenOn EPA IRIS databaseOSHA ANALYTICAL METHOD #10Page last reviewed: November 16, 2018Content source: National Institute for Occupational Safety and Health* SyndicateRegistry of Toxic Effects of Chemical Substances (RTECS)* Licensing Agreement Signed for RTECS* How Do I Access the RTECS Database?* Features of the RTECS DatabaseFollow NIOSH* YouTubeNIOSH Homepage* Workplace Safety & Health Topics* Publications and Products* Programs* Contact NIOSH* About CDC* Contact Us* 800-232-4636Facebook Twitter Instagram LinkedIn Youtube Pinterest SnapchatFacebook Twitter Instagram LinkedIn Youtube Pinterest Snapchat RSS* CONTACT CDCContact UsCall 800-232-4636Email Us* ABOUT CDC+ About CDC+ Jobs+ Funding* POLICIES+ Accessibility+ External Links+ Privacy+ Policies+ Web Policies+ No Fear Act+ FOIA+ OIG+ No Fear Act+ Nondiscrimination+ Vulnerability Disclosure Policy+ CDC Archive+ Public Health Publications+ HHS.gov+ USA.gov* CONNECT WITH US+ Youtube+ Snapchat* LANGUAGES+ Español+ 繁體中文+ Tiếng Việt+ 한국어+ Tagalog+ Русский+ العربية+ Kreyòl Ayisyen+ Français+ Polski+ Português+ Italiano+ Deutsch+ 日本語+ فارسی+ English* U.S. Department of Health & Human Services* Accessibility* External Links* Privacy* Policies* Web Policies* FOIA* OIG* No Fear Act* FOIA* Nondiscrimination* OIG* Vulnerability Disclosure Policy* CDC Archive* Public Health Publications* HHS.gov* USA.govContent Credential×This image was edited or created using GenAI (generative artificial intelligence).Our experts review all images in an effort to ensure accuracy and quality before use.Learn more about CDC's usage of GenAI.Exit Notification/Disclaimer PolicyCloseLinks with this icon indicate that you are leaving the CDC website.* The Centers for Disease Control and Prevention (CDC) cannot attest 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