Title: Acephate
CAS Registry Number: 30560-19-1
CAS Name: Acetylphosphoramidothioic acid O,S-dimethyl ester
Manufacturers' Codes: Ortho 12420
Trademarks: Orthene (Valent)
Molecular Formula: C4H10NO3PS
Molecular Weight: 183.17
Percent Composition: C 26.23%, H 5.50%, N 7.65%, O 26.20%, P 16.91%, S 17.51%
Literature References: Prepn and activity: Magee, US 3716600 and US 3845172 (1973, 1974 both to Chevron).
Properties: White solid, mp 64-68° (impure). Very sol in water; moderately sol in acetone, alc. Low soly in aromatic solvents. LD50 orally in rats: 700 mg/kg (Magee, 1973).
Melting point: mp 64-68° (impure)
Toxicity data: LD50 orally in rats: 700 mg/kg (Magee, 1973)
Use: Contact and systemic insecticide. |