*** CHEMICAL IDENTIFICATION ***

RTECS NUMBER            : CZ7875500
CHEMICAL NAME           : Benzene, p-dinitroso-
CAS REGISTRY NUMBER     : 105-12-4
BEILSTEIN REFERENCE NO. : 1841285
REFERENCE               : 4-05-00-00707 (Beilstein Handbook Reference)
LAST UPDATED            : 199709
DATA ITEMS CITED        : 6
MOLECULAR FORMULA       : C6-H4-N2-O2
MOLECULAR WEIGHT        : 136.12
SYNONYMS/TRADE NAMES :
   * Benzene, 1,4-dinitroso-
   * p-Dinitrosobenzene
   * 1,4-Dinitrosobenzene
   * RD 3435-49
 
                       *** HEALTH HAZARD DATA ***
 
                        ** ACUTE TOXICITY DATA **
 
TYPE OF TEST            : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE       : Oral
SPECIES OBSERVED        : Rodent - rat
DOSE/DURATION           : 1020 mg/kg
TOXIC EFFECTS :
   Details of toxic effects not reported other than lethal dose value
REFERENCE :
   KCRZAE Kauchuk i Rezina.  Crude and Vulcanized Rubber.  (V/O Mezhdunarodnaya
   Kniga, 113095 Moscow, USSR)  V.11-    1937- Volume(issue)/page/year:
   (11),38,1985
 
TYPE OF TEST            : LCLo - Lowest published lethal concentration
ROUTE OF EXPOSURE       : Inhalation
SPECIES OBSERVED        : Rodent - rat
DOSE/DURATION           : 200 mg/m3/2H
TOXIC EFFECTS :
   Details of toxic effects not reported other than lethal dose value
REFERENCE :
   KCRZAE Kauchuk i Rezina.  Crude and Vulcanized Rubber.  (V/O Mezhdunarodnaya
   Kniga, 113095 Moscow, USSR)  V.11-    1937- Volume(issue)/page/year:
   (11),38,1985
 
TYPE OF TEST            : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE       : Oral
SPECIES OBSERVED        : Rodent - mouse
DOSE/DURATION           : 1230 mg/kg
TOXIC EFFECTS :
   Details of toxic effects not reported other than lethal dose value
REFERENCE :
   KCRZAE Kauchuk i Rezina.  Crude and Vulcanized Rubber.  (V/O Mezhdunarodnaya
   Kniga, 113095 Moscow, USSR)  V.11-    1937- Volume(issue)/page/year:
   (11),38,1985
 
TYPE OF TEST            : LCLo - Lowest published lethal concentration
ROUTE OF EXPOSURE       : Inhalation
SPECIES OBSERVED        : Rodent - mouse
DOSE/DURATION           : 200 mg/m3/2H
TOXIC EFFECTS :
   Details of toxic effects not reported other than lethal dose value
REFERENCE :
   KCRZAE Kauchuk i Rezina.  Crude and Vulcanized Rubber.  (V/O Mezhdunarodnaya
   Kniga, 113095 Moscow, USSR)  V.11-    1937- Volume(issue)/page/year:
   (11),38,1985

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

NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA :
   NOES - National Occupational Exposure Survey (1983)
     NOES Hazard Code - X2379
       No. of Facilities: 421 (estimated)
       No. of Industries: 7
       No. of Occupations: 12
       No. of Employees: 11153 (estimated)
       No. of Female Employees: 1771 (estimated)

                          *** STATUS IN U.S. ***
 
   EPA TSCA Section 8(b) CHEMICAL INVENTORY

 
                            *** END OF RECORD ***