*** CHEMICAL IDENTIFICATION *** RTECS NUMBER : UY5750350 CHEMICAL NAME : 2-Pyrrolidinone, 1-(4-(dimethylamino)-2-butynyl)-5-methyl-, (+-)- CAS REGISTRY NUMBER : 98673-90-6 LAST UPDATED : 198803 DATA ITEMS CITED : 1 MOLECULAR FORMULA : C11-H18-N2-O MOLECULAR WEIGHT : 194.31 SYNONYMS/TRADE NAMES : * (+-)-1-(4-(Dimethylamino)-2-butynyl)-5-methyl-2-pyrrolidinone *** 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 : 78 mg/kg TOXIC EFFECTS : Details of toxic effects not reported other than lethal dose value REFERENCE : JPETAB Journal of Pharmacology and Experimental Therapeutics. (Williams & Wilkins Co., 428 E. Preston St., Baltimore, MD 21202) V.1- 1909/10- Volume(issue)/page/year: 242,464,1987 *** END OF RECORD ***