*** CHEMICAL IDENTIFICATION *** RTECS NUMBER : DW1340000 CHEMICAL NAME : (4,4'-Bipyrazolidine)-3,3',5,5'-tetrone, 1,1',2,2'-tetraphenyl- CAS REGISTRY NUMBER : 3474-99-5 BEILSTEIN REFERENCE NO. : 0376754 REFERENCE : 5-26-14-00531 (Beilstein Handbook Reference) LAST UPDATED : 199612 DATA ITEMS CITED : 1 MOLECULAR FORMULA : C30-H22-N4-O4 MOLECULAR WEIGHT : 502.56 WISWESSER LINE NOTATION : T5VNNV EHJ BR& CR& E- ET5VNNV EHJ BR& CR COMPOUND DESCRIPTOR : Drug SYNONYMS/TRADE NAMES : * DA 381 * Dipirazolidinile * Dipyraphene * Dipyrazolidinyl * 1,1',2,2'-Tetraphenyl-(4,4'-bipyrazolidine)-3,3',5,5'-tetrone *** HEALTH HAZARD DATA *** ** ACUTE TOXICITY DATA ** TYPE OF TEST : LD50 - Lethal dose, 50 percent kill ROUTE OF EXPOSURE : Intraperitoneal SPECIES OBSERVED : Rodent - rat DOSE/DURATION : 137 mg/kg TOXIC EFFECTS : Details of toxic effects not reported other than lethal dose value REFERENCE : AIPTAK Archives Internationales de Pharmacodynamie et de Therapie. (Heymans Institute of Pharmacology, De Pintelaan 185, B-9000 Ghent, Belgium) V.4- 1898- Volume(issue)/page/year: 132,16,1961 *** END OF RECORD ***