*** CHEMICAL IDENTIFICATION ***

RTECS NUMBER            : DJ7920000
CHEMICAL NAME           : Benzo(a)pyrene 7,8-oxide
CAS REGISTRY NUMBER     : 36504-65-1
LAST UPDATED            : 199410
DATA ITEMS CITED        : 13
MOLECULAR FORMULA       : C20-H12-O
MOLECULAR WEIGHT        : 268.32
WISWESSER LINE NOTATION : T F3 E6 B6666 2AB U GO IUTT&&&&J
COMPOUND DESCRIPTOR     : Tumorigen
                          Mutagen
SYNONYMS/TRADE NAMES :
   * Benzo(10,11)chryseno(1,2-b)oxirene, 6-beta,7-alpha-dihydro-
   * Benzo(a)pyrene, 7,8-dihydro-7,8-epoxy-
   * Benzo(a)pyrene 7,8-epoxide
   * BP 7,8-Epoxide
   * BP 7,8-Oxide
   * 6-beta,7-alpha-Dihydrobenzo(10,11)chryseno(1,2-b)oxirene
   * 7,8-Epoxy-7,8-dihydrobenzo(a)pyrene
 
                       *** HEALTH HAZARD DATA ***
 
                          ** TUMORIGENIC DATA **
 
TYPE OF TEST            : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE       : Administration onto the skin
SPECIES OBSERVED        : Rodent - mouse
DOSE/DURATION           : 32 mg/kg/60W-I
TOXIC EFFECTS :
   Tumorigenic - Carcinogenic by RTECS criteria
   Skin and Appendages - tumors
   Tumorigenic - tumors at site of application
REFERENCE :
   PNASA6 Proceedings of the National Academy of Sciences of the United States
   of America.  (National Academy of Sciences, Printing & Pub. Office, 2101
   Constitution Ave., Washington, DC 20418) V.1-    1915-
   Volume(issue)/page/year: 73,243,1976
 
TYPE OF TEST            : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE       : Subcutaneous
SPECIES OBSERVED        : Rodent - mouse
DOSE/DURATION           : 10 mg/kg
TOXIC EFFECTS :
   Tumorigenic - equivocal tumorigenic agent by RTECS criteria
   Tumorigenic - tumors at site of application
REFERENCE :
   JJIND8 JNCI, Journal of the National Cancer Institute.  (Washington, DC)
   V.61-79, 1978-87. For publisher information, see JNCIEQ.
   Volume(issue)/page/year: 64,617,1980
 
TYPE OF TEST            : TD - Toxic dose (other than lowest)
ROUTE OF EXPOSURE       : Administration onto the skin
SPECIES OBSERVED        : Rodent - mouse
DOSE/DURATION           : 2160 ug/kg
TOXIC EFFECTS :
   Tumorigenic - equivocal tumorigenic agent by RTECS criteria
   Skin and Appendages - tumors
REFERENCE :
   CNREA8 Cancer Research. (Public Ledger Building, Suit 816, 6th & Chestnut
   Sts., Philadelphia, PA 19106)  V.1-    1941-  Volume(issue)/page/year:
   37,4130,1977
 
TYPE OF TEST            : TD - Toxic dose (other than lowest)
ROUTE OF EXPOSURE       : Administration onto the skin
SPECIES OBSERVED        : Rodent - mouse
DOSE/DURATION           : 2144 ug/kg
TOXIC EFFECTS :
   Tumorigenic - neoplastic by RTECS criteria
   Skin and Appendages - tumors
REFERENCE :
   CCSUDL Carcinogenesis--A Comprehensive Survey.  (Raven Press, 1185 Ave. of
   the Americas, New York, NY 10036)  V.1-    1976-  Volume(issue)/page/year:
   3,371,1978
 
TYPE OF TEST            : TD - Toxic dose (other than lowest)
ROUTE OF EXPOSURE       : Administration onto the skin
SPECIES OBSERVED        : Rodent - mouse
DOSE/DURATION           : 2160 ug/kg
TOXIC EFFECTS :
   Tumorigenic - equivocal tumorigenic agent by RTECS criteria
   Skin and Appendages - tumors
REFERENCE :
   CALEDQ Cancer Letters (Shannon, Ireland).  (Elsevier Scientific Pub. Ireland
   Ltd., POB 85, Limerick, Ireland)  V.1-    1975- Volume(issue)/page/year:
   2,115,1976
 
TYPE OF TEST            : TD - Toxic dose (other than lowest)
ROUTE OF EXPOSURE       : Administration onto the skin
SPECIES OBSERVED        : Rodent - mouse
DOSE/DURATION           : 68 mg/kg/42W-I
TOXIC EFFECTS :
   Tumorigenic - equivocal tumorigenic agent by RTECS criteria
   Lungs, Thorax, or Respiration - tumors
   Skin and Appendages - tumors
REFERENCE :
   PNASA6 Proceedings of the National Academy of Sciences of the United States
   of America.  (National Academy of Sciences, Printing & Pub. Office, 2101
   Constitution Ave., Washington, DC 20418) V.1-    1915-
   Volume(issue)/page/year: 73,3867,1976
 
TYPE OF TEST            : TD - Toxic dose (other than lowest)
ROUTE OF EXPOSURE       : Administration onto the skin
SPECIES OBSERVED        : Rodent - mouse
DOSE/DURATION           : 99 mg/kg/45W-I
TOXIC EFFECTS :
   Tumorigenic - neoplastic by RTECS criteria
   Skin and Appendages - tumors
   Tumorigenic - tumors at site of application
REFERENCE :
   PNASA6 Proceedings of the National Academy of Sciences of the United States
   of America.  (National Academy of Sciences, Printing & Pub. Office, 2101
   Constitution Ave., Washington, DC 20418) V.1-    1915-
   Volume(issue)/page/year: 73,243,1976
 
                            ** MUTATION DATA **
 
TYPE OF TEST            : Mutation in microorganisms
TEST SYSTEM             : Bacteria - Salmonella typhimurium
DOSE/DURATION           : 250 ng/plate
REFERENCE :
   CNREA8 Cancer Research. (Public Ledger Building, Suit 816, 6th & Chestnut
   Sts., Philadelphia, PA 19106)  V.1-    1941-  Volume(issue)/page/year:
   36,3350,1976
 
TYPE OF TEST            : Mutation in microorganisms
TEST SYSTEM             : Bacteria - Salmonella typhimurium
DOSE/DURATION           : 25 umol/L
REFERENCE :
   JBCHA3 Journal of Biological Chemistry.  (428 E. Preston St., Baltimore, MD
   21202)  V.1-    1905-  Volume(issue)/page/year: 251,4882,1976

                              *** REVIEWS ***
 
   TOXICOLOGY REVIEW
   ABSYB2 Alfred Benzon Symposium.  (Nankodo Co. Ltd., POB 5272, Tokyo
   International 100-31, Japan) V.1-    1968-  Volume(issue)/page/year:
   10,261,1977

                          *** STATUS IN U.S. ***
 
   EPA GENETOX PROGRAM 1988, Positive: Histidine reversion-Ames test
   
   EPA GENETOX PROGRAM 1988, Positive/limited: Carcinogenicity-mouse/rat
   
   EPA GENETOX PROGRAM 1988, Negative: V79 cell culture-gene mutation

 
                            *** END OF RECORD ***