*** CHEMICAL IDENTIFICATION *** RTECS NUMBER : UX9371800 CHEMICAL NAME : Pyrrole-2-carboxylic acid, 3,5-dimethyl-4-(4-methyl-5-oxo-3-pyrazolin-3-yl)-, ethyl ester LAST UPDATED : 198309 DATA ITEMS CITED : 1 MOLECULAR FORMULA : C13-H17-N3-O3 MOLECULAR WEIGHT : 263.33 COMPOUND DESCRIPTOR : Drug SYNONYMS/TRADE NAMES : * 3,5-Dimethyl-4-(4-methyl-5-oxo-3-pyrazolin-3-yl)-2-pyrrolecarboxylic acid ethyl ester * 4-Methyl-3-(2,4-dimethyl-5-carboethoxypyrrolyl-3)-pyrazolone-5 *** 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 : 1500 mg/kg TOXIC EFFECTS : Brain and Coverings - recordings from specific areas of CNS Sense Organs and Special Senses (Eye) - ptosis Behavioral - changes in motor activity (specific assay) 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: 45,149,1982 *** END OF RECORD ***