*** CHEMICAL IDENTIFICATION *** RTECS NUMBER : TA0373000 CHEMICAL NAME : Phosphonic acid, phenyl-, cyclic methylene-o-phenylene ester CAS REGISTRY NUMBER : 4242-21-1 BEILSTEIN REFERENCE NO. : 2561900 LAST UPDATED : 199712 DATA ITEMS CITED : 2 MOLECULAR FORMULA : C13-H11-O3-P MOLECULAR WEIGHT : 246.21 SYNONYMS/TRADE NAMES : * 4H-1,3,2-Benzodioxaphosphorin, 2-phenyl-, 2-oxide * K 1 * Phenylphosphonic acid cyclic methylene-o-phenylene ester * Phosphonic acid, phenyl-, cyclic ester with o-hydroxybenzyl alcohol *** HEALTH HAZARD DATA *** ** ACUTE TOXICITY DATA ** TYPE OF TEST : LD50 - Lethal dose, 50 percent kill ROUTE OF EXPOSURE : Intraperitoneal SPECIES OBSERVED : Rodent - mouse DOSE/DURATION : 140 mg/kg TOXIC EFFECTS : Details of toxic effects not reported other than lethal dose value REFERENCE : BCPCA6 Biochemical Pharmacology. (Pergamon Press Inc., Maxwell House, Fairview Park, Elmsford, NY 10523) V.1- 1958- Volume(issue)/page/year: 12,73,1963 TYPE OF TEST : LD50 - Lethal dose, 50 percent kill ROUTE OF EXPOSURE : Intraperitoneal SPECIES OBSERVED : Bird - chicken DOSE/DURATION : 200 mg/kg TOXIC EFFECTS : Behavioral - ataxia REFERENCE : BCPCA6 Biochemical Pharmacology. (Pergamon Press Inc., Maxwell House, Fairview Park, Elmsford, NY 10523) V.1- 1958- Volume(issue)/page/year: 12,73,1963 *** END OF RECORD ***