*** CHEMICAL IDENTIFICATION *** RTECS NUMBER : DJ3100000 CHEMICAL NAME : 2H-1-Benzopyran-2-one, 4-hydroxy- CAS REGISTRY NUMBER : 1076-38-6 BEILSTEIN REFERENCE NO. : 0129768 REFERENCE : 5-18-01-00378 (Beilstein Handbook Reference) LAST UPDATED : 199701 DATA ITEMS CITED : 4 MOLECULAR FORMULA : C9-H6-O3 MOLECULAR WEIGHT : 162.15 WISWESSER LINE NOTATION : T66 BOVJ EQ SYNONYMS/TRADE NAMES : * Coumarin, 4-hydroxy- * 4-Hydroxycoumarin *** HEALTH HAZARD DATA *** ** ACUTE TOXICITY DATA ** TYPE OF TEST : LD50 - Lethal dose, 50 percent kill ROUTE OF EXPOSURE : Oral SPECIES OBSERVED : Rodent - mouse DOSE/DURATION : 2 gm/kg TOXIC EFFECTS : Details of toxic effects not reported other than lethal dose value REFERENCE : MPHEAE Medicina et Pharmacologia Experimentalis. (Basel, Switzerland) V.12-17, 1965-67. For publisher information, see PHMGBN. Volume(issue)/page/year: 17,497,1967 TYPE OF TEST : LD50 - Lethal dose, 50 percent kill ROUTE OF EXPOSURE : Intraperitoneal SPECIES OBSERVED : Rodent - mouse DOSE/DURATION : 2 gm/kg TOXIC EFFECTS : Details of toxic effects not reported other than lethal dose value REFERENCE : APTOA6 Acta Pharmacologica et Toxicologica. (Copenhagen, Denmark) V.1-59, 1945-86. For publisher information, see PHTOEH Volume(issue)/page/year: 2,109,1946 TYPE OF TEST : LD50 - Lethal dose, 50 percent kill ROUTE OF EXPOSURE : Subcutaneous SPECIES OBSERVED : Rodent - mouse DOSE/DURATION : 750 mg/kg TOXIC EFFECTS : Behavioral - somnolence (general depressed activity) Behavioral - muscle contraction or spasticity REFERENCE : AIPTAK Archives Internationales de Pharmacodynamie et de Therapie. (Heymans Institute of Pharmacology, De Pintelaan 185, B-9000 Ghent, Belgium) V.4- 1898- Volume(issue)/page/year: 128,126,1960 *** STATUS IN U.S. *** EPA TSCA Section 8(b) CHEMICAL INVENTORY *** END OF RECORD ***