*** CHEMICAL IDENTIFICATION *** RTECS NUMBER : SZ8535000 CHEMICAL NAME : Phosphonic acid, ethylthiomethyl-, dibutyl ester CAS REGISTRY NUMBER : 74038-42-9 LAST UPDATED : 198209 DATA ITEMS CITED : 1 MOLECULAR FORMULA : C11-H25-O3-P-S MOLECULAR WEIGHT : 268.39 WISWESSER LINE NOTATION : 4OPO&O4&1S2 SYNONYMS/TRADE NAMES : * Dibutyl ethylmercaptomethylphosphonate * Ethylmercaptomethylphosphonic acid dibutyl ester *** 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 : 56 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#04299 *** END OF RECORD ***