*** CHEMICAL IDENTIFICATION *** RTECS NUMBER : MS3119000 CHEMICAL NAME : Histidine, monohydrochloride, monohydrate, L- CAS REGISTRY NUMBER : 5934-29-2 LAST UPDATED : 199504 DATA ITEMS CITED : 2 MOLECULAR FORMULA : C6-H9-N3-O2.Cl-H.H2-O MOLECULAR WEIGHT : 209.66 SYNONYMS/TRADE NAMES : * L-Histidine hydrochloride hydrate *** 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 : >1677 mg/kg TOXIC EFFECTS : Details of toxic effects not reported other than lethal dose value REFERENCE : YKKZAJ Yakugaku Zasshi. Journal of Pharmacy. (Nippon Yakugakkai, 2-12-15 Shibuya, Shibuya-ku, Tokyo 150, Japan) No.1- 1881- Volume(issue)/page/year: 97,1117,1977 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - X9996 No. of Facilities: 148 (estimated) No. of Industries: 2 No. of Occupations: 5 No. of Employees: 512 (estimated) No. of Female Employees: 187 (estimated) *** END OF RECORD ***