*** CHEMICAL IDENTIFICATION *** RTECS NUMBER : UQ8960000 CHEMICAL NAME : 2-Pyrazoline-3-carboxylic acid, 5-oxo-, hydrazide CAS REGISTRY NUMBER : 73972-70-0 LAST UPDATED : 197901 DATA ITEMS CITED : 1 MOLECULAR FORMULA : C4-H6-N4-O2 MOLECULAR WEIGHT : 142.14 WISWESSER LINE NOTATION : T5NMV DHJ EVMZ SYNONYMS/TRADE NAMES : * 5-Oxo-2-pyrazoline-3-carboxylic acid hydrazide *** 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#03244 *** END OF RECORD ***