*** CHEMICAL IDENTIFICATION *** RTECS NUMBER : CB9188000 CHEMICAL NAME : Antibiotic A-21978 C(sub 3) CAS REGISTRY NUMBER : 74754-46-4 LAST UPDATED : 199212 DATA ITEMS CITED : 2 MOLECULAR FORMULA : C75-H107-N17-O26 MOLECULAR WEIGHT : 1662.99 COMPOUND DESCRIPTOR : Drug Natural Product SYNONYMS/TRADE NAMES : * A-21978 C(sub 3) * Daptomycin, 1-(N-(10-methyl-1-oxododecyl)-L-tryptophan)- *** HEALTH HAZARD DATA *** ** ACUTE TOXICITY DATA ** TYPE OF TEST : LD50 - Lethal dose, 50 percent kill ROUTE OF EXPOSURE : Subcutaneous SPECIES OBSERVED : Rodent - mouse DOSE/DURATION : 70 mg/kg TOXIC EFFECTS : Details of toxic effects not reported other than lethal dose value REFERENCE : USXXAM United States Patent Document. (U.S. Patent Office, Box 9, Washington, DC 20231) Volume(issue)/page/year: #4208403 TYPE OF TEST : LD50 - Lethal dose, 50 percent kill ROUTE OF EXPOSURE : Intravenous SPECIES OBSERVED : Rodent - mouse DOSE/DURATION : 75 mg/kg TOXIC EFFECTS : Details of toxic effects not reported other than lethal dose value REFERENCE : JANTAJ Journal of Antibiotics. (Japan Antibiotics Research Assoc., 2-20-8 Kamiosaki, Shinagawa-ku, Tokyo, 141, Japan) V.2-5, 1948-52; V.21- 1968- Volume(issue)/page/year: 41,1093,1988 *** END OF RECORD ***