*** CHEMICAL IDENTIFICATION *** RTECS NUMBER : XZ5750000 CHEMICAL NAME : s-Triazolo(1,5-a)pyrimidine, 5,7-dimethyl- CAS REGISTRY NUMBER : 7681-99-4 BEILSTEIN REFERENCE NO. : 0130589 REFERENCE : 4-26-00-01760 (Beilstein Handbook Reference) LAST UPDATED : 199612 DATA ITEMS CITED : 1 MOLECULAR FORMULA : C7-H8-N4 MOLECULAR WEIGHT : 148.19 SYNONYMS/TRADE NAMES : * 5,7-Dimethyl-1,3,4-triazaindolizine * 5,7-Dimethyl-s-triazolo(1,5-a)pyrimidine *** HEALTH HAZARD DATA *** ** ACUTE TOXICITY DATA ** TYPE OF TEST : LD50 - Lethal dose, 50 percent kill ROUTE OF EXPOSURE : Intravenous SPECIES OBSERVED : Rodent - mouse DOSE/DURATION : 180 mg/kg TOXIC EFFECTS : Details of toxic effects not reported other than lethal dose value REFERENCE : CSLNX* U.S. Army Armament Research & Development Command, Chemical Systems Laboratory, NIOSH Exchange Chemicals. (Aberdeen Proving Ground, MD 21010) Volume(issue)/page/year: NX#03025 *** END OF RECORD ***