Isofenphos
Title: Isofenphos
CAS Registry Number: 25311-71-1
CAS Name: 2-[[Ethoxy[(1-methylethyl)amino]phosphinothioyl]oxy]benzoic acid 1-methylethyl ester
Additional Names: salicylic acid isopropyl ester O-ester with O-ethyl isopropylphosphoramidothioate; 1-methylethyl 2-[[ethoxy[(1-methylethyl)amino]phosphinothioyl]oxy]benzoate; O-ethyl O-2-isopropoxycarbonylphenyl isopropylphosphoramidothioate; isophenphos; Amaze
Manufacturers' Codes: Bay 92114; SRA-12869
Trademarks: Lighter (Sanonda); Oftanol (Bayer)
Molecular Formula: C15H24NO4PS
Molecular Weight: 345.39
Percent Composition: C 52.16%, H 7.00%, N 4.06%, O 18.53%, P 8.97%, S 9.28%
Literature References: Selective soil insecticide. Prepn: G. Schrader et al., FR 1600932; eidem, US 3621082 (1970, 1971 both to Bayer). Physical and biological properties: B. Homeyer, Meded. Fac. Landbouwwet. Rijksuniv. Gent 39, 789 (1974). Determn of residues: M. J. Brown, I. H. Williams, Pestic. Sci. 7, 545 (1976). MS determn: T. Cairns et al., Anal. Chem. 56, 2547 (1984). Persistence in soil: A. Felsot, J. Environ. Sci. Health B19, 13 (1984).
Properties: Oil, bp0.01 120°. d420 1.339. Vapor pressure at 20°: 3 ´ 10-6 Torr; at 40°: 3.8 ´ 10-5 Torr. Soly in water at 20°: 23.8 ppm. Sol in dichloromethane, cyclohexanone, acetone, alc, ether, benzene. LD50 orally in rats, mice (mg/kg): 30-40, 90-130 (Homeyer).
Boiling point: bp0.01 120°
Density: d420 1.339
Toxicity data: LD50 orally in rats, mice (mg/kg): 30-40, 90-130 (Homeyer)
Use: Insecticide.

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