*** CHEMICAL IDENTIFICATION *** RTECS NUMBER : DJ2490000 CHEMICAL NAME : 2H-1-Benzopyran-3-carboxylic acid, 2-oxo- CAS REGISTRY NUMBER : 531-81-7 BEILSTEIN REFERENCE NO. : 0154276 REFERENCE : 5-18-08-00323 (Beilstein Handbook Reference) LAST UPDATED : 199709 DATA ITEMS CITED : 2 MOLECULAR FORMULA : C10-H6-O4 MOLECULAR WEIGHT : 190.16 WISWESSER LINE NOTATION : T66 BOVJ DVQ SYNONYMS/TRADE NAMES : * 3-Carboxycoumarin * Coumarin-3-carboxylic acid * G 1 (rodenticide) * 2-Oxobenzopyran-3-carboxylic acid *** HEALTH HAZARD DATA *** ** ACUTE TOXICITY DATA ** TYPE OF TEST : LD50 - Lethal dose, 50 percent kill ROUTE OF EXPOSURE : Oral SPECIES OBSERVED : Rodent - rat DOSE/DURATION : 200 mg/kg TOXIC EFFECTS : Details of toxic effects not reported other than lethal dose value REFERENCE : JPETAB Journal of Pharmacology and Experimental Therapeutics. (Williams & Wilkins Co., 428 E. Preston St., Baltimore, MD 21202) V.1- 1909/10- Volume(issue)/page/year: 90,260,1947 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#02594 *** END OF RECORD ***