*** CHEMICAL IDENTIFICATION *** RTECS NUMBER : UQ8967500 CHEMICAL NAME : 2-Pyrazolin-5-one, 1-benzyl-3-methyl- CAS REGISTRY NUMBER : 946-23-6 BEILSTEIN REFERENCE NO. : 0611140 LAST UPDATED : 199612 DATA ITEMS CITED : 1 MOLECULAR FORMULA : C11-H12-N2-O MOLECULAR WEIGHT : 188.25 WISWESSER LINE NOTATION : T5NNVJ B1R& E1 COMPOUND DESCRIPTOR : Drug SYNONYMS/TRADE NAMES : * 1-Benzyl-3-methyl-2-pyrazolin-5-one * 1-Benzyl-3-methylpyrazolone-5 *** HEALTH HAZARD DATA *** ** ACUTE TOXICITY DATA ** TYPE OF TEST : LD50 - Lethal dose, 50 percent kill ROUTE OF EXPOSURE : Intraperitoneal SPECIES OBSERVED : Rodent - mouse DOSE/DURATION : 1968 mg/kg TOXIC EFFECTS : Details of toxic effects not reported other than lethal dose value 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: 36,27,1973 *** END OF RECORD ***