Methyl Isocyanate
CAS Number
624-83-9Synonym
Isocyanate methane; Isocyanate methyl methane; Isocyanatomethane; Isocyanomethane; Methyl carbonimide; Methylcarbylamine; Methyl carbylamine; MIC
Occurrence/Use
Chemical intermediate for production of insecticides and herbicides
Cancer Potency Information
| Latest Criteria: | Chronic Reference Exposure Levels |
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Air
Chronic REL
| Chronic Inhalation REL (μg/m3): | 1 |
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| Chronic Target Organs: | Respiratory system, reproductive system |
| Human Data: | No |
| Last Chronic REL Revision: | 2001 |
| Chronic Reference Exposure Levels Comments: |
OEHHA 2008. Technical Supporting Document for Noncancer RELs, Appendix D3
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Proposition 65
Chemical Status
| Reproductive Toxicity : | Currently listed |
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Reproductive Toxicity
Date of Listing
| Listed as causing: | Developmental Toxicity Female Reproductive Toxicity |
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| Developmental Toxicity | |
| Date of Listing: | |
| Basis for Listing : | State's Qualified Experts |
| Female Reproductive Toxicity | |
| Basis for Listing: | State's Qualified Experts |
Documents, Presentations, and Publications
| Reproductive Toxicity: |
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Public notices related to this chemical
- December 10th, 2007 Meeting of the Science Advisory Board's Developmental and Reproductive Toxicant Identification Committee
- Chemical Listed Effective November 12, 2010 as Known to the State Of California to Cause Reproductive Toxicity: Methyl Isocyanate
- Availability of Hazard Identification Materials for Methyl Isocyanate and Announcement of the October 21, 2010 Developmental and Reproductive Toxicant Identification Committee Meeting
- Request for Relevant Information on the Developmental and Reproductive Toxicity of: Bromodichloromethane, Caffeine and Methylisocyanate