*** CHEMICAL IDENTIFICATION *** RTECS NUMBER : SC4751000 CHEMICAL NAME : 4-Pentynoic acid CAS REGISTRY NUMBER : 6089-09-4 BEILSTEIN REFERENCE NO. : 1742047 REFERENCE : 4-02-00-01693 (Beilstein Handbook Reference) LAST UPDATED : 199612 DATA ITEMS CITED : 1 MOLECULAR FORMULA : C5-H6-O2 MOLECULAR WEIGHT : 98.11 WISWESSER LINE NOTATION : QV3UU1 SYNONYMS/TRADE NAMES : * Pent-4-yn-1-oic acid * Propargylacetic acid *** 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 : 28 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#12263 *** END OF RECORD ***