*** CHEMICAL IDENTIFICATION ***

RTECS NUMBER            : OW5750000
CHEMICAL NAME           : Mercury, (methanethiolato)methyl-
CAS REGISTRY NUMBER     : 25310-48-9
LAST UPDATED            : 199712
DATA ITEMS CITED        : 18
MOLECULAR FORMULA       : C2-H6-Hg-S
MOLECULAR WEIGHT        : 262.73
WISWESSER LINE NOTATION : 1S-HG-1
COMPOUND DESCRIPTOR     : Organometallic
                          Reproductive Effector
SYNONYMS/TRADE NAMES :
   * Mercury methylmercury sulfide
   * Mercury, methyl(methylthio)-
   * (Methanethiolato)methylmercury
   * Methyl methylmercuric sulfide
   * Methyl(methylthio)mercury
 
                       *** HEALTH HAZARD DATA ***
 
                          ** REPRODUCTIVE DATA **
 
TYPE OF TEST            : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE       : Oral
SPECIES OBSERVED        : Rodent - rat
DOSE                    : 75 mg/kg
SEX/DURATION            : lactating female 1-15 day(s) post-birth
TOXIC EFFECTS :
   Reproductive - Specific Developmental Abnormalities - Central Nervous System
REFERENCE :
   SSHZAS Seishin Shinkeigaku Zasshi.  Journal of Psychiatry and Neurology.
   (Nippon Seishin Shinkei Gakkai, Hongo, Bunkyo-ku, Tokyo 113, Japan)  V.39-
   1935-  Volume(issue)/page/year: 71,506,1969
 
TYPE OF TEST            : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE       : Unreported
SPECIES OBSERVED        : Rodent - rat
DOSE                    : 16 mg/kg
SEX/DURATION            : female 1-8 day(s) after conception
TOXIC EFFECTS :
   Reproductive - Effects on Embryo or Fetus - fetotoxicity (except death,
   e.g., stunted fetus)
REFERENCE :
   KUIZAR Kumamoto Igakkai Zasshi.  Journal of the Kumamoto Medical Society.
   (Kumamoto Igakkai, c/o Kumamoto Daigaku Igakubu, 2-1, 2-chome Honjo-machi,
   Kumamoto, Japan)  V.1-    1925-  Volume(issue)/page/year: 41,506,1967

                              *** REVIEWS ***
 
   ACGIH TLV-TWA 0.01 mg(Hg)/m3; STEL 0.03 mg/m3
   DTLVS* The Threshold Limit Values (TLVs) and Biological Exposure Indices
   (BEIs) booklet issues by American Conference of Governmental Industrial
   Hygienists (ACGIH), Cincinnati, OH, 1996  Volume(issue)/page/year:
   TLV/BEI,1997

                    *** U.S. STANDARDS AND REGULATIONS ***
 
   MSHA STANDARD-air:TWA 0.001 ppm (0.01 mg(Hg)/m3)
   DTLWS* "Documentation of the Threshold Limit Values for Substances in
   Workroom Air," Supplements. For publisher information, see 85INA8.
   Volume(issue)/page/year: 3,22,1973

                    *** OCCUPATIONAL EXPOSURE LIMITS ***
 
   OEL-AUSTRALIA:TWA 0.01 mg(Hg)/m3;STEL 0.03 mg(Hg)/m3;Skin JAN 1993
   
   OEL-BELGIUM:TWA 0.01 mg(Hg)/m3;STEL 0.03 mg(Hg)/m3;Skin JAN 1993
   
   OEL-DENMARK:TWA 0.01 mg(Hg)/m3;Skin JAN 1993
   
   OEL-FINLAND:TWA 0.01 mg(Hg)/m3;Skin JAN 1993
   
   OEL-FRANCE:TWA 0.01 mg(Hg)/m3;Skin JAN 1993
   
   OEL-THE NETHERLANDS:TWA 0.01 mg(Hg)/m3;STEL 0.02 mg(Hg)/m3;Skin JAN 1993
   
   OEL-THE PHILIPPINES:TWA 0.01 mg(Hg)/m3 JAN 1993
   
   OEL-SWEDEN:TWA 0.01 mg(Hg)/m3;Skin JAN 1993
   
   OEL-THAILAND:TWA 0.01 mg(Hg)/m3;STEL 0.04 mg(Hg)/m3 JAN 1993
   
   OEL-TURKEY:TWA 0.01 mg(Hg)/m3;Skin JAN 1993
   
   OEL-UNITED KINGDOM:TWA 0.01 mg(Hg)/m3;STEL 0.03 mg(Hg)/m3;Skin JAN 1993
   
   OEL IN BULGARIA, COLOMBIA, JORDAN, KOREA check ACGIH TLV
   
   OEL IN NEW ZEALAND, SINGAPORE, VIETNAM check ACGIH TLV

         *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA ***

NIOSH RECOMMENDED EXPOSURE LEVEL (REL) :
   NIOSH REL TO MERCURY, ORGANO-air:TWA 0.01 mg/m3;STEL 0.03 mg/m3 (Sk)
REFERENCE :
   NIOSH* National Institute for Occupational Safety and Health, U.S. Dept. of
   Health, Education, and Welfare, Reports and Memoranda.
   Volume(issue)/page/year: DHHS #92-100,1992

 
                            *** END OF RECORD ***