*** CHEMICAL IDENTIFICATION *** RTECS NUMBER : UR0466250 CHEMICAL NAME : 3H-Pyrazol-3-one, 1,2-dihydro-5-methyl-2-(3-(4-(4-methyl-2-pyridinyl)-1 -piperazinyl)propyl)- l-(4-nitrophenyl)- CAS REGISTRY NUMBER : 104416-63-9 LAST UPDATED : 199803 DATA ITEMS CITED : 1 MOLECULAR FORMULA : C23-H28-N6-O3 MOLECULAR WEIGHT : 436.57 COMPOUND DESCRIPTOR : Drug SYNONYMS/TRADE NAMES : * 5-Methyl-1-(4-nitrophenyl)-2-(3-(4-(4-methylpyrid-2-yl)piperazin-1-yl)pr opyl)pyrazolin-3-one *** 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 : 90 mg/kg TOXIC EFFECTS : Details of toxic effects not reported other than lethal dose value REFERENCE : USXXAM United States Patent Document. (U.S. Patent Office, Box 9, Washington, DC 20231) Volume(issue)/page/year: #4672063 *** END OF RECORD ***