*** CHEMICAL IDENTIFICATION *** RTECS NUMBER : MF8400000 CHEMICAL NAME : Guanine, hydrochloride CAS REGISTRY NUMBER : 635-39-2 LAST UPDATED : 199701 DATA ITEMS CITED : 3 MOLECULAR FORMULA : C5-H5-N5-O.Cl-H MOLECULAR WEIGHT : 187.61 WISWESSER LINE NOTATION : T56 BM DN FMYMVJ GUM &GH SYNONYMS/TRADE NAMES : * USAF S-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 : 200 mg/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 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - X5241 No. of Facilities: 164 (estimated) No. of Industries: 2 No. of Occupations: 5 No. of Employees: 877 (estimated) No. of Female Employees: 731 (estimated) *** STATUS IN U.S. *** EPA TSCA Section 8(b) CHEMICAL INVENTORY *** END OF RECORD ***