*** CHEMICAL IDENTIFICATION *** RTECS NUMBER : DB6550000 CHEMICAL NAME : Benzenesulfonic acid, 4-((3,5-dioxo-1,2-diphenyl-4-pyrazolidinylidene)hydra zino)-, monosodium salt CAS REGISTRY NUMBER : 19988-95-5 LAST UPDATED : 199112 DATA ITEMS CITED : 1 MOLECULAR FORMULA : C21-H15-N4-O5-S.Na MOLECULAR WEIGHT : 458.45 COMPOUND DESCRIPTOR : Drug SYNONYMS/TRADE NAMES : * Sodium salt of 1,2-diphenyl-4-N-sulphophenylhydrazono-3,5-dioxopydrazolidine *** HEALTH HAZARD DATA *** ** ACUTE TOXICITY DATA ** TYPE OF TEST : LD50 - Lethal dose, 50 percent kill ROUTE OF EXPOSURE : Unreported SPECIES OBSERVED : Rodent - rat DOSE/DURATION : 431 mg/kg TOXIC EFFECTS : Details of toxic effects not reported other than lethal dose value REFERENCE : RPTOAN Russian Pharmacology and Toxicology (English Translation). Translation of FATOAO. (Euromed Pub., 33, Woodlands Rd., Surbiton, Surrey, UK) V.30- 1967- Volume(issue)/page/year: 39,58,1976 *** END OF RECORD ***