*** CHEMICAL IDENTIFICATION ***
RTECS NUMBER : CO4025000
CHEMICAL NAME : Azoxybenzene
CAS REGISTRY NUMBER : 495-48-7
OTHER CAS REGISTRY NOS. : 55599-32-1
BEILSTEIN REFERENCE NO. : 0743984
LAST UPDATED : 199806
DATA ITEMS CITED : 20
MOLECULAR FORMULA : C12-H10-N2-O
MOLECULAR WEIGHT : 198.24
WISWESSER LINE NOTATION : ONR&UNR
COMPOUND DESCRIPTOR : Mutagen
SYNONYMS/TRADE NAMES :
* Azobenzene, oxide
* Azossibenzene
* Azoxybenzeen
* Azoxybenzide
* Azoxybenzol
* Azoxydibenzene
* Benzene, azoxydi-
* Diazene, diphenyl-, 1-oxide
* Diphenyldiazene 1-oxide
* Fenazox
* Ordinary azoxybenzene
*** 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 : 620 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
AMIHBC AMA Archives of Industrial Hygiene and Occupational Medicine.
(Chicago, IL) V.2-10, 1950-54. For publisher information, see AEHLAU.
Volume(issue)/page/year: 10,61,1954
TYPE OF TEST : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE : Intraperitoneal
SPECIES OBSERVED : Rodent - rat
DOSE/DURATION : 940 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
85JFAN "Agrochemicals Handbook," with updates, Hartley, D., and H. Kidd,
eds., Nottingham, Royal Soc. of Chemistry, 1983-86 Volume(issue)/page/year:
A195,1983
TYPE OF TEST : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE : Oral
SPECIES OBSERVED : Rodent - mouse
DOSE/DURATION : 515 mg/kg
TOXIC EFFECTS :
Gastrointestinal - other changes
Liver - other changes
REFERENCE :
KYDKAJ Kyoritsu Yakka Daigaku Kenkyu Nenpo. Annual Report of the Kyoritsu
College of Pharmacy. (Kyoritsu Yakka Daigaku, 1-5-30 Shibakoen Minato-ku,
Tokyo, Japan) V.1- 1955- Volume(issue)/page/year: 21,25,1976
TYPE OF TEST : LDLo - Lowest published lethal dose
ROUTE OF EXPOSURE : Intraperitoneal
SPECIES OBSERVED : Rodent - mouse
DOSE/DURATION : 500 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
CBCCT* "Summary Tables of Biological Tests," National Research Council
Chemical-Biological Coordination Center. (National Academy of Science
Library, 2101 Constitution Ave., NW, Washington, DC 20418)
Volume(issue)/page/year: 7,389,1955
TYPE OF TEST : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE : Administration onto the skin
SPECIES OBSERVED : Rodent - rabbit
DOSE/DURATION : 1350 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
85JFAN "Agrochemicals Handbook," with updates, Hartley, D., and H. Kidd,
eds., Nottingham, Royal Soc. of Chemistry, 1983-86 Volume(issue)/page/year:
A195,1983
TYPE OF TEST : LDLo - Lowest published lethal dose
ROUTE OF EXPOSURE : Subcutaneous
SPECIES OBSERVED : Rodent - rabbit
DOSE/DURATION : 275 mg/kg
TOXIC EFFECTS :
Gastrointestinal - other changes
Kidney, Ureter, Bladder - other changes
REFERENCE :
AEXPBL Archiv fuer Experimentelle Pathologie und Pharmakologie. (Leipzig,
Ger. Dem. Rep.) V.1-109, 1873-1925. For publisher information, see NSAPCC.
Volume(issue)/page/year: 35,401,1895
** MUTATION DATA **
TYPE OF TEST : Mutation in microorganisms
TEST SYSTEM : Bacteria - Salmonella typhimurium
DOSE/DURATION : 10 ug/plate
REFERENCE :
PMRSDJ Progress in Mutation Research. (Elsevier Science Pub. Co., Inc., 52
Vanderbilt Ave., New York, NY 10017) V.1- 1981- Volume(issue)/page/year:
1,271,1981
TYPE OF TEST : Mutation in microorganisms
TEST SYSTEM : Bacteria - Escherichia coli
DOSE/DURATION : 50 ug/plate
REFERENCE :
PMRSDJ Progress in Mutation Research. (Elsevier Science Pub. Co., Inc., 52
Vanderbilt Ave., New York, NY 10017) V.1- 1981- Volume(issue)/page/year:
1,351,1981
TYPE OF TEST : DNA repair
TEST SYSTEM : Bacteria - Escherichia coli
DOSE/DURATION : 500 mg/L
REFERENCE :
PMRSDJ Progress in Mutation Research. (Elsevier Science Pub. Co., Inc., 52
Vanderbilt Ave., New York, NY 10017) V.1- 1981- Volume(issue)/page/year:
1,195,1981
TYPE OF TEST : DNA damage
TEST SYSTEM : Bacteria - Bacillus subtilis
DOSE/DURATION : 1 mg/disc
REFERENCE :
PMRSDJ Progress in Mutation Research. (Elsevier Science Pub. Co., Inc., 52
Vanderbilt Ave., New York, NY 10017) V.1- 1981- Volume(issue)/page/year:
1,175,1981
TYPE OF TEST : Mutation in microorganisms
TEST SYSTEM : Yeast - Saccharomyces cerevisiae
DOSE/DURATION : 250 mg/L
REFERENCE :
PMRSDJ Progress in Mutation Research. (Elsevier Science Pub. Co., Inc., 52
Vanderbilt Ave., New York, NY 10017) V.1- 1981- Volume(issue)/page/year:
1,414,1981
TYPE OF TEST : Gene conversion and mitotic recombination
TEST SYSTEM : Yeast - Saccharomyces cerevisiae
DOSE/DURATION : 196 ppm
REFERENCE :
PMRSDJ Progress in Mutation Research. (Elsevier Science Pub. Co., Inc., 52
Vanderbilt Ave., New York, NY 10017) V.1- 1981- Volume(issue)/page/year:
1,481,1981
TYPE OF TEST : Sister chromatid exchange
TEST SYSTEM : Human Lymphocyte
DOSE/DURATION : 1 umol/L
REFERENCE :
MSCREJ Medical Science Research. (Elsevier Applied Science Pub. Ltd., Crown
House, Linton Rd., Barking, Essex IG11 8JU, UK) V.15- 1987-
Volume(issue)/page/year: 20,373,1992
TYPE OF TEST : Micronucleus test
ROUTE OF EXPOSURE : Intraperitoneal
TEST SYSTEM : Rodent - mouse
DOSE/DURATION : 6400 ug/kg
REFERENCE :
PMRSDJ Progress in Mutation Research. (Elsevier Science Pub. Co., Inc., 52
Vanderbilt Ave., New York, NY 10017) V.1- 1981- Volume(issue)/page/year:
1,686,1981
TYPE OF TEST : Cytogenetic analysis
ROUTE OF EXPOSURE : Intraperitoneal
TEST SYSTEM : Rodent - mouse
DOSE/DURATION : 792 ug/kg
REFERENCE :
MSCREJ Medical Science Research. (Elsevier Applied Science Pub. Ltd., Crown
House, Linton Rd., Barking, Essex IG11 8JU, UK) V.15- 1987-
Volume(issue)/page/year: 20,373,1992
TYPE OF TEST : Sperm Morphology
ROUTE OF EXPOSURE : Intraperitoneal
TEST SYSTEM : Rodent - mouse
DOSE/DURATION : 792 ug/kg
REFERENCE :
MSCREJ Medical Science Research. (Elsevier Applied Science Pub. Ltd., Crown
House, Linton Rd., Barking, Essex IG11 8JU, UK) V.15- 1987-
Volume(issue)/page/year: 20,373,1992
TYPE OF TEST : Morphological transformation
TEST SYSTEM : Rodent - hamster Kidney
DOSE/DURATION : 33400 ug/L
REFERENCE :
PMRSDJ Progress in Mutation Research. (Elsevier Science Pub. Co., Inc., 52
Vanderbilt Ave., New York, NY 10017) V.1- 1981- Volume(issue)/page/year:
1,626,1981
*** STATUS IN U.S. ***
EPA GENETOX PROGRAM 1988, Positive: Mammalian micronucleus
EPA GENETOX PROGRAM 1988, Negative: Sperm morphology-mouse
EPA TSCA Section 8(b) CHEMICAL INVENTORY
*** END OF RECORD ***