Methyl chlorocarbonate (CASRN 79-22-1)
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0309
Methyl chlorocarbonate; CASRN 79-22-1
Health assessment information on a chemical substance is included in IRIS only after a comprehensive review of chronic toxicity data by U.S. EPA health scientists from several Program Offices and the Office of Research and Development. The summaries presented in Sections I and II represent a consensus reached in the review process. Background information and explanations of the methods used to derive the values given in IRIS are provided in the Background Documents.
STATUS OF DATA FOR Methyl chlorocarbonate
File First On-Line 08/22/1988
Category (section) |
Status |
Last Revised |
---|---|---|
Oral RfD Assessment (I.A.) | withdrawn | 02/01/1996* |
Inhalation RfC Assessment (I.B.) | no data | |
Carcinogenicity Assessment (II.) | no data | 10/01/1991 |
*A comprehensive review of toxicological studies was completed (2004) - please see section I.A. for more information.
_I. Chronic Health Hazard Assessments for Noncarcinogenic Effects
_I.A. Reference Dose for Chronic Oral Exposure (RfD)
Substance Name — Methyl chlorocarbonate
CASRN — 79-22-1
The RfD for methyl chlorocarbonate was withdrawn on 05/01/1989 pending further review by the RfD Work Group.
A comprehensive review of toxicological studies published prior to 2004 indicated that there is insufficient health effects data to derive an RfD for Methyl chlorocarbonate at this time.
EPA Contacts:
Please contact the IRIS Hotline for all questions concerning this assessment or IRIS, in general, at (202)566-1676 (phone), (202)566-1749 (FAX) or hotline.iris@epa.gov (internet address).
_I.B. Reference Concentration for Chronic Inhalation Exposure (RfC)
Substance Name — Methyl chlorocarbonate
CASRN — 79-22-1
Not available at this time.
_II. Carcinogenicity Assessment for Lifetime Exposure
Substance Name — Methyl chlorocarbonate
CASRN — 79-22-1
Not available at this time.
_III.
[reserved]
_IV. [reserved]
_V. [reserved]
_VI. Bibliography
Substance Name — Methyl chlorocarbonate
CASRN — 79-22-1
Not available at this time.
_VII. Revision History
Substance Name — Methyl chlorocarbonate
CASRN — 79-22-1
Date |
Section |
Description |
---|---|---|
08/22/1988 | I.A. | Oral RfD summary on-line |
04/01/1989 | V. | Supplementary data on-line |
05/01/1989 | I.A. | Withdrawn pending further review |
10/01/1991 | II. | Carcinogenicity assessment now under review |
01/01/1992 | IV. | Regulatory Action section on-line |
08/01/1995 | I.A., II. | EPA's RfD/RfC and CRAVE workgroups were discontinued in May, 1995. Chemical substance reviews that were not completed by September 1995 were taken out of IRIS review. The IRIS Pilot Program replaced the workgroup functions beginning in September, 1995. |
02/01/1996 | I.A. | Contact changed |
04/01/1997 | III., IV., V. | Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information. |
10/28/2003 | I.A. | Screening-Level Literature Review Findings message has been added. |
09/29/2004 | I.A. | Screening-Level Literature Review Findings message has been removed and replaced by comprehensive literature review conclusions. |
_VIII. Synonyms
Substance Name — Methyl chlorocarbonate
CASRN — 79-22-1
Last Revised — 08/22/1988
- 79-22-1
- carbonochloridic acid, methyl ester
- chlorameisensaeure methylester
- chlorocarbonate de methyle
- chlorocarbonic acid methyl ester
- chloroformiate de methyle
- chloroformic acid methyl ester
- formic acid, chloro-, methyl ester
- MCF
- methoxycarbonyl chloride
- methylchloorformiaat
- Methyl chlorocarbonate
- methyl chloroformate
- methylester kyseliny chlormravenci
- methylester kyseliny chloruhlicite
- metilcloroformiato
- RCRA waste number U156
- TL 438
- UN 1238