*** CHEMICAL IDENTIFICATION *** RTECS NUMBER : UQ8455500 CHEMICAL NAME : 3,5-Pyrazolidinedione, 1,4-diphenyl- CAS REGISTRY NUMBER : 3426-01-5 LAST UPDATED : 199712 DATA ITEMS CITED : 3 MOLECULAR FORMULA : C15-H11-N2-O2 MOLECULAR WEIGHT : 251.28 WISWESSER LINE NOTATION : T5VMNV EHJ CR& ER COMPOUND DESCRIPTOR : Drug SYNONYMS/TRADE NAMES : * Diphenox * 1,4-Diphenyl-3,5-dioxo-pyrazolidin * 1,4-Diphenyl-3,5-pyrazolidinedione * DPHP * Kr 122 * Phenopyrazone *** 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 : >3200 mg/kg TOXIC EFFECTS : Details of toxic effects not reported other than lethal dose value REFERENCE : YKKZAJ Yakugaku Zasshi. Journal of Pharmacy. (Nippon Yakugakkai, 2-12-15 Shibuya, Shibuya-ku, Tokyo 150, Japan) No.1- 1881- Volume(issue)/page/year: 98,679,1978 TYPE OF TEST : LD50 - Lethal dose, 50 percent kill ROUTE OF EXPOSURE : Subcutaneous SPECIES OBSERVED : Rodent - mouse DOSE/DURATION : 1003 mg/kg TOXIC EFFECTS : Details of toxic effects not reported other than lethal dose value REFERENCE : ARZNAD Arzneimittel-Forschung. Drug Research. (Editio Cantor Verlag, Postfach 1255, W-7960 Aulendorf, Fed. Rep. Ger.) V.1- 1951- Volume(issue)/page/year: 4,249,1954 TYPE OF TEST : LD50 - Lethal dose, 50 percent kill ROUTE OF EXPOSURE : Intravenous SPECIES OBSERVED : Rodent - mouse DOSE/DURATION : 740 mg/kg TOXIC EFFECTS : Details of toxic effects not reported other than lethal dose value REFERENCE : AEPPAE Naunyn-Schmiedeberg's Archiv fuer Experimentelle Pathologie und Pharmakologie. (Berlin, Ger.) V.110-253, 1925-66. For publisher information, see NSAPCC. Volume(issue)/page/year: 233,365,1958 *** END OF RECORD ***