*** CHEMICAL IDENTIFICATION *** RTECS NUMBER : GN7645000 CHEMICAL NAME : Coumarin, 4-hydroxy-3-(o-tolyl)- CAS REGISTRY NUMBER : 73791-18-1 BEILSTEIN REFERENCE NO. : 1287626 REFERENCE : 5-18-02-00306 (Beilstein Handbook Reference) LAST UPDATED : 199612 DATA ITEMS CITED : 1 MOLECULAR FORMULA : C16-H12-O3 MOLECULAR WEIGHT : 252.28 WISWESSER LINE NOTATION : T66 BO CVJ EQ DR B1 COMPOUND DESCRIPTOR : Drug SYNONYMS/TRADE NAMES : * 2H-1-Benzopyran-2-one, 4-hydroxy-3-(o-tolyl)- * 4-Hydroxy-3-(o-tolyl)-2H-1-benzopyran-2-one * 4-Hydroxy-3-(o-tolyl)coumarin *** 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 : 250 mg/kg TOXIC EFFECTS : Behavioral - altered sleep time (including change in righting reflex) Behavioral - muscle contraction or spasticity Lungs, Thorax, or Respiration - respiratory stimulation REFERENCE : ARZNAD Arzneimittel-Forschung. Drug Research. (Editio Cantor Verlag, Postfach 1255, W-7960 Aulendorf, Fed. Rep. Ger.) V.1- 1951- Volume(issue)/page/year: 14,29,1964 *** END OF RECORD ***