*** CHEMICAL IDENTIFICATION *** RTECS NUMBER : DK4800000 CHEMICAL NAME : p-Benzoquinone, 2,5-dimethyl- CAS REGISTRY NUMBER : 137-18-8 LAST UPDATED : 199701 DATA ITEMS CITED : 6 MOLECULAR FORMULA : C8-H8-O2 MOLECULAR WEIGHT : 136.16 WISWESSER LINE NOTATION : L6V DVJ B1 E1 COMPOUND DESCRIPTOR : Agricultural Chemical Drug Mutagen SYNONYMS/TRADE NAMES : * 2,5-Dimethyl-1,4-benzochinon * 2,5-Dimethyl-p-benzoquinone * 2,5-Dimethyl-1,4-benzoquinone * 2,5-Dimetilbenzochinone (1:4) * Floron * Florone * Phlorone * p-Xyloquinone *** HEALTH HAZARD DATA *** ** ACUTE TOXICITY DATA ** TYPE OF TEST : LDLo - Lowest published lethal dose ROUTE OF EXPOSURE : Oral SPECIES OBSERVED : Rodent - rat DOSE/DURATION : 500 mg/kg TOXIC EFFECTS : Details of toxic effects not reported other than lethal dose value REFERENCE : NCNSA6 National Academy of Sciences, National Research Council, Chemical-Biological Coordination Center, Review. (Washington, DC) Volume(issue)/page/year: 5,39,1953 TYPE OF TEST : LD50 - Lethal dose, 50 percent kill ROUTE OF EXPOSURE : Oral SPECIES OBSERVED : Rodent - mouse DOSE/DURATION : 290 mg/kg TOXIC EFFECTS : Behavioral - somnolence (general depressed activity) Behavioral - convulsions or effect on seizure threshold REFERENCE : BCFAAI Bollettino Chimico Farmaceutico. (Societa Editoriale Farmaceutica, Via Ausonio 12, 20123 Milan, Italy) V.33- 1894- Volume(issue)/page/year: 97,533,1958 TYPE OF TEST : LD50 - Lethal dose, 50 percent kill ROUTE OF EXPOSURE : Intraperitoneal SPECIES OBSERVED : Rodent - mouse DOSE/DURATION : 11 mg/kg TOXIC EFFECTS : Behavioral - somnolence (general depressed activity) Behavioral - convulsions or effect on seizure threshold REFERENCE : BCFAAI Bollettino Chimico Farmaceutico. (Societa Editoriale Farmaceutica, Via Ausonio 12, 20123 Milan, Italy) V.33- 1894- Volume(issue)/page/year: 97,533,1958 TYPE OF TEST : LD50 - Lethal dose, 50 percent kill ROUTE OF EXPOSURE : Subcutaneous SPECIES OBSERVED : Rodent - mouse DOSE/DURATION : 43 mg/kg TOXIC EFFECTS : Behavioral - somnolence (general depressed activity) Behavioral - convulsions or effect on seizure threshold REFERENCE : BCFAAI Bollettino Chimico Farmaceutico. (Societa Editoriale Farmaceutica, Via Ausonio 12, 20123 Milan, Italy) V.33- 1894- Volume(issue)/page/year: 97,533,1958 ** MUTATION DATA ** TYPE OF TEST : Mutation in microorganisms TEST SYSTEM : Bacteria - Salmonella typhimurium DOSE/DURATION : 40 nmol/plate REFERENCE : MUREAV Mutation Research. (Elsevier Science Pub. B.V., POB 211, 1000 AE Amsterdam, Netherlands) V.1- 1964- Volume(issue)/page/year: 347,37,1995 *** STATUS IN U.S. *** EPA TSCA Section 8(b) CHEMICAL INVENTORY *** END OF RECORD ***