*** CHEMICAL IDENTIFICATION *** RTECS NUMBER : TL1419250 CHEMICAL NAME : 1-Piperazinecarboxylic acid, 4-methyl-, 4-butyl-1,2-diphenyl-5-oxo-2,5-dihydro-1H- pyrazol-3-yl ester CAS REGISTRY NUMBER : 70485-40-4 LAST UPDATED : 199712 DATA ITEMS CITED : 1 MOLECULAR FORMULA : C25-H30-N4-O3 MOLECULAR WEIGHT : 434.59 COMPOUND DESCRIPTOR : Drug SYNONYMS/TRADE NAMES : * Urethane d'enol de la phenylbutazone et de la N-methyl-piperazine *** HEALTH HAZARD DATA *** ** ACUTE TOXICITY DATA ** TYPE OF TEST : LD50 - Lethal dose, 50 percent kill ROUTE OF EXPOSURE : Oral SPECIES OBSERVED : Rodent - mouse DOSE/DURATION : 900 mg/kg TOXIC EFFECTS : Details of toxic effects not reported other than lethal dose value REFERENCE : FRXXBL French Demande Patent Document. (U.S. Patent and Trademark Office, Foreign Patents, Washington, DC 20231) Volume(issue)/page/year: #2376140 *** END OF RECORD ***