*** CHEMICAL IDENTIFICATION *** RTECS NUMBER : XH5910000 CHEMICAL NAME : Theophylline, 8-isobutyl- CAS REGISTRY NUMBER : 5770-30-9 BEILSTEIN REFERENCE NO. : 0235781 REFERENCE : 4-26-00-02479 (Beilstein Handbook Reference) LAST UPDATED : 199612 DATA ITEMS CITED : 1 MOLECULAR FORMULA : C11-H16-N4-O2 MOLECULAR WEIGHT : 236.31 WISWESSER LINE NOTATION : T56 BM DN FNVNVJ C1Y1&1 F1 H1 COMPOUND DESCRIPTOR : Drug SYNONYMS/TRADE NAMES : * 8-Isobutyl theophylline * Xanthine, 1,3-dimethyl-8-isobutyl- *** 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 : 250 mg/kg TOXIC EFFECTS : Details of toxic effects not reported other than lethal dose value REFERENCE : JMCMAR Journal of Medicinal Chemistry. (American Chemical Soc., Distribution Office Dept. 223, POB POB 57136, West End Stn., Washington, DC 20037) V.6- 1963- Volume(issue)/page/year: 14,1202,1971 *** END OF RECORD ***