*** CHEMICAL IDENTIFICATION ***

RTECS NUMBER            : CZ9370000
CHEMICAL NAME           : Benzene, divinyl-
CAS REGISTRY NUMBER     : 1321-74-0
LAST UPDATED            : 199712
DATA ITEMS CITED        : 11
MOLECULAR FORMULA       : C10-H10
MOLECULAR WEIGHT        : 130.20
COMPOUND DESCRIPTOR     : Tumorigen
                          Mutagen
SYNONYMS/TRADE NAMES :
   * Benzene, diethenyl-
   * Diethenylbenzene
   * Divinylbenzene
   * Divinyl benzene
   * Vinylstyrene
 
                       *** HEALTH HAZARD DATA ***
 
                        ** ACUTE TOXICITY DATA **
 
TYPE OF TEST            : LDLo - Lowest published lethal dose
ROUTE OF EXPOSURE       : Oral
SPECIES OBSERVED        : Rodent - rat
DOSE/DURATION           : 10 mL/kg
TOXIC EFFECTS :
   Lungs, Thorax, or Respiration - fibrosis, focal (pneumoconiosis)
   Lungs, Thorax, or Respiration - acute pulmonary edema
   Blood - hemorrhage
REFERENCE :
   AMIHAB AMA Archives of Industrial Health.  (Chicago, IL)  V.11-21, 1955-60.
   For publisher information, see AEHLAU.  Volume(issue)/page/year: 19,403,1959
 
                            ** MUTATION DATA **
 
TYPE OF TEST            : Micronucleus test
ROUTE OF EXPOSURE       : Inhalation
TEST SYSTEM             : Rodent - mouse
DOSE/DURATION           : 53 ppm/6H/3D (Continuous)
REFERENCE :
   MUREAV Mutation Research.  (Elsevier Science Pub. B.V., POB 211, 1000 AE
   Amsterdam, Netherlands) V.1-    1964-  Volume(issue)/page/year: 370,107,1996
 
TYPE OF TEST            : Cytogenetic analysis
ROUTE OF EXPOSURE       : Inhalation
TEST SYSTEM             : Rodent - mouse
DOSE/DURATION           : 53 ppm/6H/3D (Continuous)
REFERENCE :
   MUREAV Mutation Research.  (Elsevier Science Pub. B.V., POB 211, 1000 AE
   Amsterdam, Netherlands) V.1-    1964-  Volume(issue)/page/year: 370,107,1996
 
TYPE OF TEST            : Sister chromatid exchange
ROUTE OF EXPOSURE       : Inhalation
TEST SYSTEM             : Rodent - mouse
DOSE/DURATION           : 53 ppm/6H/3D (Continuous)
REFERENCE :
   MUREAV Mutation Research.  (Elsevier Science Pub. B.V., POB 211, 1000 AE
   Amsterdam, Netherlands) V.1-    1964-  Volume(issue)/page/year: 370,107,1996

                              *** REVIEWS ***
 
   ACGIH TLV-TWA 53 mg/m3 (10 ppm)
   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

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

NIOSH RECOMMENDED EXPOSURE LEVEL (REL) :
   NIOSH REL TO DIVINYL BENZENE-air:10H TWA 10 ppm
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

NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA :
   NOHS - National Occupational Hazard Survey (1974)
     NOHS Hazard Code - 83286
       No. of Facilities: 164 (estimated)
       No. of Industries: 5
       No. of Occupations: 14
       No. of Employees: 12271 (estimated)
   
   NOES - National Occupational Exposure Survey (1983)
     NOES Hazard Code - 83286
       No. of Facilities: 3 (estimated)
       No. of Industries: 1
       No. of Occupations: 1
       No. of Employees: 11 (estimated)

                          *** STATUS IN U.S. ***
 
   EPA TSCA Section 8(b) CHEMICAL INVENTORY
   
   EPA TSCA TEST SUBMISSION (TSCATS) DATA BASE, JUNE 1998
   
   NTP Carcinogenesis studies; laboratory assigned, October 1997

 
                            *** END OF RECORD ***