*** CHEMICAL IDENTIFICATION *** RTECS NUMBER : WU7675950 CHEMICAL NAME : Sydnone, 3-(2,5-dihydro-2,3-dimethyl-5-oxo-1-phenyl-4-pyrazoly l)- LAST UPDATED : 199112 DATA ITEMS CITED : 1 MOLECULAR FORMULA : C13-H12-N4-O3 MOLECULAR WEIGHT : 272.29 COMPOUND DESCRIPTOR : Drug SYNONYMS/TRADE NAMES : * 3-(2,5-Dihydro-2,3-dimethyl-5-oxo-1-phenyl-4-pyrazolyl)sydnone *** 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 : >1 gm/kg TOXIC EFFECTS : Details of toxic effects not reported other than lethal dose value REFERENCE : OYYAA2 Oyo Yakuri. Pharmacometrics. (Oyo Yakuri Kenkyukai, CPO Box 180, Sendai 980-91, Japan) V.1- 1967- Volume(issue)/page/year: 2,280,1968 *** END OF RECORD ***