*** CHEMICAL IDENTIFICATION *** RTECS NUMBER : MS3116000 CHEMICAL NAME : Histidine, monohydrochloride, D- LAST UPDATED : 199007 DATA ITEMS CITED : 1 MOLECULAR FORMULA : C6-H9-N3-O2.Cl-H MOLECULAR WEIGHT : 191.64 SYNONYMS/TRADE NAMES : * D-Histidine hydrochloride *** HEALTH HAZARD DATA *** ** ACUTE TOXICITY DATA ** TYPE OF TEST : LD50 - Lethal dose, 50 percent kill ROUTE OF EXPOSURE : Intraperitoneal SPECIES OBSERVED : Rodent - rat DOSE/DURATION : 4599 mg/kg TOXIC EFFECTS : Behavioral - altered sleep time (including change in righting reflex) Lungs, Thorax, or Respiration - dyspnea Nutritional and Gross Metabolic - body temperature decrease REFERENCE : ABBIA4 Archives of Biochemistry and Biophysics. (Academic Press, Inc., 1 E. First St., Duluth, MN 55802) V.31- 1951- Volume(issue)/page/year: 64,319,1956 *** END OF RECORD ***