*** CHEMICAL IDENTIFICATION *** RTECS NUMBER : ET1890000 CHEMICAL NAME : Butyric acid, 3-(2-(6-(3-ethylureido)-3-pyridazinyl)hydrazinylidene )-, tert-butyl ester CAS REGISTRY NUMBER : 90931-92-3 BEILSTEIN REFERENCE NO. : 5619659 LAST UPDATED : 199612 DATA ITEMS CITED : 1 MOLECULAR FORMULA : C15-H24-N6-O3 MOLECULAR WEIGHT : 336.45 COMPOUND DESCRIPTOR : Drug SYNONYMS/TRADE NAMES : * 3-(2-(6-(3-Ethylureido)-3-pyridazinyl)hydrazinylidene)butyric acid tert-butyl ester *** 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 : 400 mg/kg TOXIC EFFECTS : Details of toxic effects not reported other than lethal dose value REFERENCE : EJMCA5 European Journal of Medicinal Chemistry--Chimie Therapeutique. (Editions Scientifiques Elsevier, 29 rue Buffon, F-75005, Paris, France) V.9- 1974- Volume(issue)/page/year: 19,111,1984 *** END OF RECORD ***