*** CHEMICAL IDENTIFICATION *** RTECS NUMBER : KD1920250 CHEMICAL NAME : 2,7-(Epoxypentadeca(1,11,13)trienimino)naphtho(2,1-b) furan-1,11(2H)-dione, 5,6,9,17,19,21- hexahydroxy-2,4,12,16,18,20,22-heptamethyl-23-methoxy -8-(diethylaminomethy l)-, 21-acetate CAS REGISTRY NUMBER : 4075-41-6 LAST UPDATED : 199712 DATA ITEMS CITED : 3 MOLECULAR FORMULA : C42-H58-N2-O12 MOLECULAR WEIGHT : 783.02 COMPOUND DESCRIPTOR : Drug SYNONYMS/TRADE NAMES : * NCI 145-666 * PF-42 * Rifamycin PF 42 * Rifamycin SV, 8-(diethylaminomethyl)- *** HEALTH HAZARD DATA *** ** ACUTE TOXICITY DATA ** TYPE OF TEST : LD50 - Lethal dose, 50 percent kill ROUTE OF EXPOSURE : Oral SPECIES OBSERVED : Rodent - mouse DOSE/DURATION : >2 gm/kg TOXIC EFFECTS : Details of toxic effects not reported other than lethal dose value REFERENCE : CMTRAG Chemotherapia. (Basel, Switzerland) V.1-12, 1960-67. For publisher information, see CHTHBK. Volume(issue)/page/year: 12,155,1967 TYPE OF TEST : LD50 - Lethal dose, 50 percent kill ROUTE OF EXPOSURE : Intraperitoneal SPECIES OBSERVED : Rodent - mouse DOSE/DURATION : 400 mg/kg TOXIC EFFECTS : Details of toxic effects not reported other than lethal dose value REFERENCE : CMTRAG Chemotherapia. (Basel, Switzerland) V.1-12, 1960-67. For publisher information, see CHTHBK. Volume(issue)/page/year: 12,155,1967 TYPE OF TEST : LD50 - Lethal dose, 50 percent kill ROUTE OF EXPOSURE : Intravenous SPECIES OBSERVED : Rodent - mouse DOSE/DURATION : 205 mg/kg TOXIC EFFECTS : Details of toxic effects not reported other than lethal dose value REFERENCE : 38KLAC "Structure-Activity Relationship among the Semisynthetic Antibiotics," Perlman, D., ed., New York, Academic Press, 1977 Volume(issue)/page/year: -,531,1977 *** END OF RECORD ***