*** CHEMICAL IDENTIFICATION *** RTECS NUMBER : TA0360000 CHEMICAL NAME : Phosphonic acid, phenyl-, 4-bromo-2,5-dichlorophenyl methyl ester CAS REGISTRY NUMBER : 25006-32-0 BEILSTEIN REFERENCE NO. : 2947938 LAST UPDATED : 199612 DATA ITEMS CITED : 2 MOLECULAR FORMULA : C13-H10-Br-Cl2-O3-P MOLECULAR WEIGHT : 396.01 COMPOUND DESCRIPTOR : Agricultural Chemical SYNONYMS/TRADE NAMES : * Leptophos OA * Leptophos oxon * Leptophos oxygen analog * Phenylphosphonic acid 4-bromo-2,5-dichlorophenyl methyl ester * Phosvel oxon *** 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 : 118 mg/kg TOXIC EFFECTS : Details of toxic effects not reported other than lethal dose value REFERENCE : NTIS** National Technical Information Service. (Springfield, VA 22161) Formerly U.S. Clearinghouse for Scientific & Technical Information. Volume(issue)/page/year: PB85-143766 ** OTHER MULTIPLE DOSE TOXICITY DATA ** TYPE OF TEST : TDLo - Lowest published toxic dose ROUTE OF EXPOSURE : Oral SPECIES OBSERVED : Bird - chicken DOSE/DURATION : 900 mg/kg/90D-I TOXIC EFFECTS : Spinal Cord - other degenerative changes Peripheral Nerve and Sensation - spastic paralysis with or without sensory change Behavioral - ataxia REFERENCE : TXAPA9 Toxicology and Applied Pharmacology. (Academic Press, Inc., 1 E. First St., Duluth, MN 55802) V.1- 1959- Volume(issue)/page/year: 53,150,1980 *** END OF RECORD ***