*** CHEMICAL IDENTIFICATION *** RTECS NUMBER : MS3125000 CHEMICAL NAME : Histidine, thio-, L- CAS REGISTRY NUMBER : 63798-18-5 LAST UPDATED : 199012 DATA ITEMS CITED : 1 MOLECULAR FORMULA : C6-H9-N3-O-S MOLECULAR WEIGHT : 171.24 WISWESSER LINE NOTATION : T5M CNJ D1YZYQUS SYNONYMS/TRADE NAMES : * alpha-Amino-4 or 5-imidazolethiopropionic acid * L-Thiohistidine * USAF B-1 *** 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 : 1 gm/kg TOXIC EFFECTS : Details of toxic effects not reported other than lethal dose value REFERENCE : NTIS** National Technical Information Service. (Springfield, VA 22161) Formerly U.S. Clearinghouse for Scientific & Technical Information. Volume(issue)/page/year: AD277-689 *** END OF RECORD ***