*** CHEMICAL IDENTIFICATION *** RTECS NUMBER : QJ9630000 CHEMICAL NAME : Naphthalene, 1-methyl- CAS REGISTRY NUMBER : 90-12-0 LAST UPDATED : 199710 DATA ITEMS CITED : 7 MOLECULAR FORMULA : C11-H10 MOLECULAR WEIGHT : 142.21 WISWESSER LINE NOTATION : L66J B1 COMPOUND DESCRIPTOR : Mutagen SYNONYMS/TRADE NAMES : * alpha-Methylnaphthalene * 1-Methylnaphthalene *** 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 : 1840 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: -,85,1982 ** MUTATION DATA ** TYPE OF TEST : Mutation in microorganisms TEST SYSTEM : Bacteria - Salmonella typhimurium DOSE/DURATION : 6 mmol/L/2H REFERENCE : CNREA8 Cancer Research. (Public Ledger Building, Suit 816, 6th & Chestnut Sts., Philadelphia, PA 19106) V.1- 1941- Volume(issue)/page/year: 39,4152,1979 TYPE OF TEST : Sister chromatid exchange TEST SYSTEM : Human Lymphocyte DOSE/DURATION : 250 umol/L REFERENCE : MUREAV Mutation Research. (Elsevier Science Pub. B.V., POB 211, 1000 AE Amsterdam, Netherlands) V.1- 1964- Volume(issue)/page/year: 208,155,1988 *** OCCUPATIONAL EXPOSURE LIMITS *** OEL-RUSSIA:STEL 20 mg/m3 JAN 1993 *** STATUS IN U.S. *** EPA TSCA Section 8(b) CHEMICAL INVENTORY EPA TSCA Section 8(d) unpublished health/safety studies EPA TSCA TEST SUBMISSION (TSCATS) DATA BASE, JUNE 1998 *** END OF RECORD ***