*** CHEMICAL IDENTIFICATION *** RTECS NUMBER : QE1020000 CHEMICAL NAME : Morpholine, 4-(((1,2-dihydro-5,6,17,19,21-pentahydroxy-23-methoxy -2,4,12,16,18,20,22- heptamethyl-1,11-dioxo-2,7-(epoxypentadeca(1,11,13)tr ienimino)naphtho(2,1- b)furan-9-yl)oxy) acetyl)-3,5-dimethyl-, 21-acetate CAS REGISTRY NUMBER : 55372-15-1 BEILSTEIN REFERENCE NO. : 5418749 LAST UPDATED : 199612 DATA ITEMS CITED : 1 MOLECULAR FORMULA : C45-H60-N2-O14 MOLECULAR WEIGHT : 853.07 COMPOUND DESCRIPTOR : Drug SYNONYMS/TRADE NAMES : * Rifamycin B dimethylmorpholide *** HEALTH HAZARD DATA *** ** ACUTE TOXICITY DATA ** TYPE OF TEST : LD50 - Lethal dose, 50 percent kill ROUTE OF EXPOSURE : Intravenous SPECIES OBSERVED : Rodent - mouse DOSE/DURATION : 695 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: 7,596,1964 *** END OF RECORD ***