*** CHEMICAL IDENTIFICATION ***

RTECS NUMBER            : DK2625000
CHEMICAL NAME           : p-Benzoquinone
CAS REGISTRY NUMBER     : 106-51-4
LAST UPDATED            : 199712
DATA ITEMS CITED        : 60
MOLECULAR FORMULA       : C6-H4-O2
MOLECULAR WEIGHT        : 108.10
WISWESSER LINE NOTATION : L6V DVJ
COMPOUND DESCRIPTOR     : Agricultural Chemical
                          Tumorigen
                          Mutagen
SYNONYMS/TRADE NAMES :
   * Benzo-chinon
   * 1,4-Benzoquine
   * p-Benzoquinone
   * 1,4-Benzoquinone
   * Chinon
   * Chinone
   * p-Chinon
   * Cyclohexadienedione
   * 1,4-Cyclohexadienedione
   * 2,5-Cyclohexadiene-1,4-dione
   * 1,4-Cyclohexadiene dioxide
   * 1,4-Diossibenzene
   * 1,4-Dioxybenzene
   * 1,4-Dioxy-benzol
   * NCI-C55845
   * Quinone
   * p-Quinone
   * Quinone
   * RCRA waste number U197
   * USAF P-220
 
                       *** 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           : 130 mg/kg
TOXIC EFFECTS :
   Details of toxic effects not reported other than lethal dose value
REFERENCE :
   FEPRA7 Federation Proceedings, Federation of American Societies for
   Experimental Biology. (Bethesda, MD)  V.1-46, 1942-87.
   Volume(issue)/page/year: 8,348,1949
 
TYPE OF TEST            : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE       : Intraperitoneal
SPECIES OBSERVED        : Rodent - rat
DOSE/DURATION           : 30 mg/kg
TOXIC EFFECTS :
   Details of toxic effects not reported other than lethal dose value
REFERENCE :
   PHBUA9 Pharmaceutical Bulletin.  (Tokyo, Japan)  V.1-5, 1953-57.  For
   publisher information, see CPBTAL.  Volume(issue)/page/year: 3,337,1955
 
TYPE OF TEST            : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE       : Intravenous
SPECIES OBSERVED        : Rodent - rat
DOSE/DURATION           : 25 mg/kg
TOXIC EFFECTS :
   Details of toxic effects not reported other than lethal dose value
REFERENCE :
   FEPRA7 Federation Proceedings, Federation of American Societies for
   Experimental Biology. (Bethesda, MD)  V.1-46, 1942-87.
   Volume(issue)/page/year: 8,348,1949
 
TYPE OF TEST            : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE       : Unreported
SPECIES OBSERVED        : Rodent - rat
DOSE/DURATION           : 5600 ug/kg
TOXIC EFFECTS :
   Behavioral - convulsions or effect on seizure threshold
REFERENCE :
   RPTOAN Russian Pharmacology and Toxicology (English Translation).
   Translation of FATOAO.  (Euromed Pub., 33, Woodlands Rd., Surbiton, Surrey,
   UK)  V.30-    1967-  Volume(issue)/page/year: 41,146,1978
 
TYPE OF TEST            : LDLo - Lowest published lethal dose
ROUTE OF EXPOSURE       : Oral
SPECIES OBSERVED        : Rodent - mouse
DOSE/DURATION           : 100 mg/kg
TOXIC EFFECTS :
   Details of toxic effects not reported other than lethal dose value
REFERENCE :
   GISAAA Gigiena i Sanitariya.  For English translation, see HYSAAV.  (V/O
   Mezhdunarodnaya Kniga, 113095 Moscow, USSR)  V.1-    1936-
   Volume(issue)/page/year: 23(5),14,1958
 
TYPE OF TEST            : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE       : Intraperitoneal
SPECIES OBSERVED        : Rodent - mouse
DOSE/DURATION           : 8500 ug/kg
TOXIC EFFECTS :
   Peripheral Nerve and Sensation - spastic paralysis with or without sensory
   change
   Behavioral - muscle contraction or spasticity
   Lungs, Thorax, or Respiration - cyanosis
REFERENCE :
   BCPCA6 Biochemical Pharmacology.  (Pergamon Press Inc., Maxwell House,
   Fairview Park, Elmsford, NY 10523)  V.1-    1958-  Volume(issue)/page/year:
   12,885,1963
 
TYPE OF TEST            : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE       : Subcutaneous
SPECIES OBSERVED        : Rodent - mouse
DOSE/DURATION           : 93800 ug/kg
TOXIC EFFECTS :
   Details of toxic effects not reported other than lethal dose value
REFERENCE :
   ZGIMAL Zeitschrift fuer die Gesamte Innere Medizin und Ihre Grenzgebiete.
   (Buchexport, Postfach 160, Leipzig DDR-7010, Ger. Dem. Rep.)  V.1-    1946-
   Volume(issue)/page/year: 2,333,1947
 
TYPE OF TEST            : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE       : Subcutaneous
SPECIES OBSERVED        : Mammal - species unspecified
DOSE/DURATION           : 296 mg/kg
TOXIC EFFECTS :
   Details of toxic effects not reported other than lethal dose value
REFERENCE :
   85GMAT "Toxicometric Parameters of Industrial Toxic Chemicals Under Single
   Exposure," Izmerov, N.F., et al., Moscow, Centre of International Projects,
   GKNT, 1982  Volume(issue)/page/year: -,25,1982
 
                          ** TUMORIGENIC DATA **
 
TYPE OF TEST            : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE       : Administration onto the skin
SPECIES OBSERVED        : Rodent - mouse
DOSE/DURATION           : 800 mg/kg/29W-C
TOXIC EFFECTS :
   Tumorigenic - equivocal tumorigenic agent by RTECS criteria
   Lungs, Thorax, or Respiration - tumors
   Skin and Appendages - tumors
REFERENCE :
   PIATA8 Proceedings of the Imperial Academy of Tokyo.  (Tokyo, Japan) V.1-21,
   1912-45.  For publisher information, see PJACAW. Volume(issue)/page/year:
   16,309,1940
 
TYPE OF TEST            : TD - Toxic dose (other than lowest)
ROUTE OF EXPOSURE       : Administration onto the skin
SPECIES OBSERVED        : Rodent - mouse
DOSE/DURATION           : 6326 mg/kg/43W-C
TOXIC EFFECTS :
   Tumorigenic - equivocal tumorigenic agent by RTECS criteria
   Lungs, Thorax, or Respiration - tumors
   Skin and Appendages - tumors
REFERENCE :
   GANNA2 Gann.  Japanese Journal of Cancer Research.  (Tokyo, Japan)  V.1-75,
   1907-84.  For publisher information, see JJCREP.  Volume(issue)/page/year:
   39,56,1948
 
                            ** MUTATION DATA **
 
TYPE OF TEST            : Mutation in microorganisms
TEST SYSTEM             : Bacteria - Salmonella typhimurium
DOSE/DURATION           : 8 mg/plate
REFERENCE :
   MUREAV Mutation Research.  (Elsevier Science Pub. B.V., POB 211, 1000 AE
   Amsterdam, Netherlands) V.1-    1964-  Volume(issue)/page/year: 81,11,1981
 
TYPE OF TEST            : DNA adduct
TEST SYSTEM             : Human Bone marrow
DOSE/DURATION           : 100 umol/L
REFERENCE :
   CRNGDP Carcinogenesis (London). (Oxford Univ. Press, Pinkhill House,
   Southfield Road, Eynsham, Oxford OX8 1JJ, UK)  V.1-    1980-
   Volume(issue)/page/year: 12,1181,1991
 
TYPE OF TEST            : Mutation test systems - not otherwise specified
TEST SYSTEM             : Human Lymphocyte
DOSE/DURATION           : 5 umol/L
REFERENCE :
   CNREA8 Cancer Research. (Public Ledger Building, Suit 816, 6th & Chestnut
   Sts., Philadelphia, PA 19106)  V.1-    1941-  Volume(issue)/page/year:
   45,2471,1985
 
TYPE OF TEST            : Sister chromatid exchange
TEST SYSTEM             : Human Lymphocyte
DOSE/DURATION           : 5 umol/L
REFERENCE :
   CNREA8 Cancer Research. (Public Ledger Building, Suit 816, 6th & Chestnut
   Sts., Philadelphia, PA 19106)  V.1-    1941-  Volume(issue)/page/year:
   45,2471,1985
 
TYPE OF TEST            : Micronucleus test
ROUTE OF EXPOSURE       : Oral
TEST SYSTEM             : Rodent - mouse
DOSE/DURATION           : 20 mg/kg
REFERENCE :
   MUREAV Mutation Research.  (Elsevier Science Pub. B.V., POB 211, 1000 AE
   Amsterdam, Netherlands) V.1-    1964-  Volume(issue)/page/year: 208,61,1988
 
TYPE OF TEST            : Micronucleus test
TEST SYSTEM             : Rodent - mouse Embryo
DOSE/DURATION           : 50 umol/L
REFERENCE :
   EMMUEG Environmental and Molecular Mutagenesis.  (Alan R. Liss, Inc., 41 E.
   11th St., New York, NY 10003)  V.10-    1987-  Volume(issue)/page/year:
   19(Suppl 20),21,1992
 
TYPE OF TEST            : Morphological transformation
TEST SYSTEM             : Rodent - mouse Embryo
DOSE/DURATION           : 400 ug/L
REFERENCE :
   CRNGDP Carcinogenesis (London). (Oxford Univ. Press, Pinkhill House,
   Southfield Road, Eynsham, Oxford OX8 1JJ, UK)  V.1-    1980-
   Volume(issue)/page/year: 16,477,1995
 
TYPE OF TEST            : DNA damage
TEST SYSTEM             : Rodent - mouse Lymphocyte
DOSE/DURATION           : 4 umol/L
REFERENCE :
   PAACA3 Proceedings of the American Association for Cancer Research. (Waverly
   Press, 428 E. Preston St., Baltimore, MD 21202)  V.1-    1954-
   Volume(issue)/page/year: 27,81,1986
 
TYPE OF TEST            : DNA inhibition
TEST SYSTEM             : Rodent - mouse Lymphocyte
DOSE/DURATION           : 5 umol/L
REFERENCE :
   MOPMA3 Molecular Pharmacology.  (Williams & Wilkins Co., 428 E. Preston St.,
   Baltimore, MD 21202) V.1-    1965-  Volume(issue)/page/year: 28,560,1985
 
TYPE OF TEST            : Mutation test systems - not otherwise specified
TEST SYSTEM             : Rodent - mouse Lymphocyte
DOSE/DURATION           : 10 umol/L
REFERENCE :
   TOLED5 Toxicology Letters.  (Elsevier Science Pub. B.V., POB 211, 1000 AE
   Amsterdam, Netherlands) V.1-    1977-  Volume(issue)/page/year: 29,161,1985
 
TYPE OF TEST            : Mutation test systems - not otherwise specified
TEST SYSTEM             : Rodent - mouse Cells - not otherwise specified
DOSE/DURATION           : 6 umol/L
REFERENCE :
   CBTOE2 Cell Biology and Toxicology.  (Princeton Scientific Pub., Inc., 301
   N. Harrison St., CN 5279, Princeton, NJ 08540)  V.1-    1984-
   Volume(issue)/page/year: 2,231,1986
 
TYPE OF TEST            : Mutation in mammalian somatic cells
TEST SYSTEM             : Rodent - mouse Lymphocyte
DOSE/DURATION           : 2100 nmol/L
REFERENCE :
   MUTAEX Mutagenesis. (Oxford Univ. Press, Pinkhill House, Southfield Road,
   Eynsham, Oxford OX8 1JJ, UK) V.1- 1986-  Volume(issue)/page/year: 3,193,1988
 
TYPE OF TEST            : Micronucleus test
TEST SYSTEM             : Rodent - hamster Lung
DOSE/DURATION           : 6700 umol/L
REFERENCE :
   EVHPAZ EHP, Environmental Health Perspectives.  (U.S. Government Printing
   Office, Supt of Documents, Washington, DC 20402)  No.1-    1972-
   Volume(issue)/page/year: 82,81,1989
 
TYPE OF TEST            : Mutation test systems - not otherwise specified
TEST SYSTEM             : Rodent - rabbit Bone marrow
DOSE/DURATION           : 2 umol/L
REFERENCE :
   AJIMD8 American Journal of Industrial Medicine.  (Alan R. Liss, Inc., 41 E.
   11th St., New York, NY 10003)  V.1-    1980-  Volume(issue)/page/year:
   7,485,1985

                              *** REVIEWS ***
 
   ACGIH TLV-TWA 0.44 mg/m3 (0.1 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

   IARC Cancer Review:Animal Inadequate Evidence
   IMEMDT IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals
   to Man.  (WHO Publications Centre USA, 49 Sheridan Ave., Albany, NY 12210)
   V.1-    1972-  Volume(issue)/page/year: 15,255,1977

   IARC Cancer Review:Human No Adequate Data
   IMEMDT IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals
   to Man.  (WHO Publications Centre USA, 49 Sheridan Ave., Albany, NY 12210)
   V.1-    1972-  Volume(issue)/page/year: 15,255,1977

   IARC Cancer Review:Group 3
   IMSUDL IARC Monographs, Supplement.  (WHO Publications Centre USA, 49
   Sheridan Ave., Albany, NY 12210)  No.1-    1979-  Volume(issue)/page/year:
   7,56,1987

                    *** U.S. STANDARDS AND REGULATIONS ***
 
   MSHA STANDARD-air:TWA 0.1 ppm (0.4 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:
   3,221,1971

   OSHA PEL (Gen Indu):8H TWA 0.1 ppm (0.4 mg/m3)
   CFRGBR Code of Federal Regulations.  (U.S. Government Printing Office, Supt.
   of Documents, Washington, DC 20402)  Volume(issue)/page/year:
   29,1910.1000,1994

   OSHA PEL (Construc):8H TWA 0.1 ppm (0.4 mg/m3)
   CFRGBR Code of Federal Regulations.  (U.S. Government Printing Office, Supt.
   of Documents, Washington, DC 20402)  Volume(issue)/page/year:
   29,1926.55,1994

   OSHA PEL (Shipyard):8H TWA 0.1 ppm (0.4 mg/m3)
   CFRGBR Code of Federal Regulations.  (U.S. Government Printing Office, Supt.
   of Documents, Washington, DC 20402)  Volume(issue)/page/year:
   29,1915.1000,1993

   OSHA PEL (Fed Cont):8H TWA 0.1 ppm (0.4 mg/m3)
   CFRGBR Code of Federal Regulations.  (U.S. Government Printing Office, Supt.
   of Documents, Washington, DC 20402)  Volume(issue)/page/year:
   41,50-204.50,1994

                    *** OCCUPATIONAL EXPOSURE LIMITS ***
 
   OEL-ARAB Republic of Egypt:TWA 0.1 ppm (0.4 mg/m3) JAN 1993
   
   OEL-AUSTRALIA:TWA 0.1 ppm (0.4 mg/m3) JAN 1993
   
   OEL-AUSTRIA:TWA 0.1 ppm (0.4 mg/m3) JAN 1993
   
   OEL-BELGIUM:TWA 0.1 ppm (0.44 mg/m3) JAN 1993
   
   OEL-DENMARK:TWA 0.1 ppm (0.4 mg/m3) JAN 1993
   
   OEL-FINLAND:TWA 0.1 ppm (0.4 mg/m3);STEL 0.3 ppm;Skin JAN 1993
   
   OEL-FRANCE:TWA 0.1 ppm (0.4 mg/m3);STEL 0.3 ppm (1.5 mg/m3) JAN 1993
   
   OEL-GERMANY:TWA 0.1 ppm (0.4 mg/m3) JAN 1993
   
   OEL-THE NETHERLANDS:TWA 0.1 ppm (0.4 mg/m3) JAN 1993
   
   OEL-THE PHILIPPINES:TWA 5 ppm (15 mg/m3) JAN 1993
   
   OEL-RUSSIA:STEL 0.05 mg/m3 JAN 1993
   
   OEL-SWEDEN:TWA 0.1 ppm (0.4 mg/m3);STEL 0.3 ppm (1.3 mg/m3) JAN 1993
   
   OEL-SWITZERLAND:TWA 0.1 ppm (0.4 mg/m3);STEL 0.2 ppm (0.8 mg/m3) JAN 1993
   
   OEL-TURKEY:TWA 0.1 ppm (0.4 mg/m3) JAN 1993
   
   OEL-UNITED KINGDOM:TWA 0.1 ppm (0.4 mg/m3);STEL 0.3 ppm 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 QUINONE-air:10H TWA 0.1 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 - 66950
       No. of Facilities: 145 (estimated)
       No. of Industries: 3
       No. of Occupations: 6
       No. of Employees: 3292 (estimated)
   
   NOES - National Occupational Exposure Survey (1983)
     NOES Hazard Code - 66950
       No. of Facilities: 1228 (estimated)
       No. of Industries: 17
       No. of Occupations: 18
       No. of Employees: 15511 (estimated)
       No. of Female Employees: 1274 (estimated)

                          *** STATUS IN U.S. ***
 
   EPA GENETOX PROGRAM 1988, Inconclusive: D melanogaster Sex-linked lethal
   
   EPA TSCA Section 8(b) CHEMICAL INVENTORY
   
   EPA TSCA 8(a) PRELIMINARY ASSESSMENT INFORMATION, FINAL RULE
   FEREAC Federal Register.  (U.S. Government Printing Office, Supt. of
   Documents, Washington, DC 20402) V.1-    1936-  Volume(issue)/page/year:
   47,26992,82

   EPA TSCA Section 8(d) unpublished health/safety studies
   
   EPA TSCA Section 8(e) Risk Notification, 8EHQ-0892-9079;8EHQ-0892-9083
   
   On EPA IRIS database
   
   EPA TSCA TEST SUBMISSION (TSCATS) DATA BASE, JUNE 1998

 
                            *** END OF RECORD ***