*** CHEMICAL IDENTIFICATION ***

RTECS NUMBER            : UR5880000
CHEMICAL NAME           : 1,2-Pyridazinedicarboximide,
                          tetrahydro-4-(bromomercuri)-5-methoxy-
CAS REGISTRY NUMBER     : 91499-04-6
LAST UPDATED            : 199712
DATA ITEMS CITED        : 21
MOLECULAR FORMULA       : C7-H10-Br-Hg-N3-O3
MOLECULAR WEIGHT        : 464.70
WISWESSER LINE NOTATION : T56 ANVMVN&TJ GO1 H-HG-E
COMPOUND DESCRIPTOR     : Drug
SYNONYMS/TRADE NAMES :
   * 3-Bromomercuri-4-methoxy-1,6,8-triazabicyclo(4.3.0)nonane-7,9-dione
   * Tetrahydro-4-(bromomercuri)-5-methoxy-1,2-pyridazinedicarboximide
 
                       *** HEALTH HAZARD DATA ***
 
                        ** ACUTE TOXICITY DATA **
 
TYPE OF TEST            : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE       : Oral
SPECIES OBSERVED        : Rodent - mouse
DOSE/DURATION           : 4 gm/kg
TOXIC EFFECTS :
   Details of toxic effects not reported other than lethal dose value
REFERENCE :
   AIPTAK Archives Internationales de Pharmacodynamie et de Therapie. (Heymans
   Institute of Pharmacology, De Pintelaan 185, B-9000 Ghent, Belgium)  V.4-   
   1898-  Volume(issue)/page/year: 143,181,1963

                              *** 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 0.05 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 0.05 mg(Hg)/m3;Skin JAN 1993
   
   OEL-BELGIUM:TWA 0.05 mg(Hg)/m3;Skin JAN 1993
   
   OEL-DENMARK:TWA 0.05 mg(Hg)/m3 JAN 1993
   
   OEL-FINLAND:TWA 0.05 mg(Hg)/m3 JAN 1993
   
   OEL-FRANCE:TWA 0.05 mg(Hg)/m3 JAN 1993
   
   OEL-GERMANY:TWA 0.01 ppm (0.1 mg(Hg)/m3) JAN 1993
   
   OEL-HUNGARY:TWA 0.02 mg(Hg)/m3;STEL 0.04 mg(Hg)/m3 JAN 1993
   
   OEL-JAPAN:TWA 0.05 mg(Hg)/m3 JAN 1993
   
   OEL-THE NETHERLANDS:TWA 0.05 mg(Hg)/m3;STEL 0.15 mg(Hg)/m3  JAN 1993
   
   OEL-THE PHILIPPINES:TWA 0.05 mg(Hg)/m3 JAN 1993
   
   OEL-POLAND:TWA 0.01 mg(Hg)/m3 JAN 1993
   
   OEL-RUSSIA:TWA 0.05 mg(Hg)/m3;STEL 0.01 mg(Hg)/m3 JAN 1993
   
   OEL-SWEDEN:TWA 0.05 mg(Hg)/m3 JAN 1993
   
   OEL-THAILAND:STEL 0.05 mg(Hg)/m3 JAN 1993
   
   OEL-UNITED KINGDOM:TWA 0.05 mg(Hg)/m3;STEL 0.15 mg(Hg)/m3  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, ARYL AND INORGANIC-air:CL 0.1 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 ***