Structural Formula Vector Image
Title: Etrimfos
CAS Registry Number: 38260-54-7
CAS Name: O-(6-Ethoxy-2-ethyl-4-pyrimidinyl)phosphorothioic acid O,O-dimethyl ester
Additional Names: O,O-dimethyl O-(2-ethyl-4-ethoxypyrimidinyl)-6-thionophosphate
Manufacturers' Codes: SAN-197
Trademarks: Ekamet (Sandoz); Satisfar (Sandoz)
Molecular Formula: C10H17N2O4PS
Molecular Weight: 292.29
Percent Composition: C 41.09%, H 5.86%, N 9.58%, O 21.90%, P 10.60%, S 10.97%
Literature References: Organophosphorous insecticide with stomach and contact activity against pests of fruit and vegetable crops. Prepn: K. Milzner, F. Reisser, DE 2209554; eidem, US 3862188 (1972, 1975 both to Sandoz). Physical properties and activity: H. J. Knutti, F. Reisser, Proc. 8th Br. Insectic. Fungic. Conf. 2, 675 (1975). Residue analysis and toxicity study: M. C. Bowman et al., J. Agric. Food Chem. 26, 35 (1978). Metabolism in plants: M. Akram et al., ibid. 925. Field studies of formulations: D. A. Collins, D. A. Cook, Crop Prot. 17, 521 (1998). Review of analytical methods: J. C. Karapally et al., Anal. Methods Pestic. Plant Growth Regul. 11, 125-138 (1980).
Properties: Colorless oil, slight characteristic odor. mp -3.35°. d 1.195; nD20 1.5068. Vapor pressure at 20°: 6.5 ´ 10-5 mm Hg. Soly in water at 23-24°: 40 ppm. Miscible with ethanol, dimethyl sulfoxide, ethyl acetate, acetone, ether, chloroform, xylene, hexane. LD50 in male rats, mice (mg/kg): 1800, 437 orally; LC50 in carp (mg/l): 13.6 (48 hr); 13.3 (96 hr) (Knutti).
Melting point: mp -3.35°
Index of refraction: nD20 1.5068
Density: d 1.195
Toxicity data: LD50 in male rats, mice (mg/kg): 1800, 437 orally; LC50 in carp (mg/l): 13.6 (48 hr); 13.3 (96 hr) (Knutti)
Use: Agricultural insecticide.

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