140163-89-9

The pure product is a clear liquid with a melting point of -53.3 to -50.5°C. Its vapor pressure is 1.9×10-4 mPa (25°C). Its Kow IgP is 1.64 (25°C). Its solubility in water (pH 4.5, 20°C) is 77.63 g/L. Its solubility in other solvents (20°C, g/L) is 77.63 in n-hexane and ≥1000 in 1,2-dichloroethane, methanol, acetone, m-xylene, and ethyl acetate. Its photolysis DT50 (25°C) in aqueous solution is 179 days (pH 4), 178 days (pH 7), and 8 days (pH 9).

ChEBI: Imicyafos is a member of imidazolidines.

Imicyafos is typically synthesised through a multi-step process involving the formation of a phosphonothioate ester. The key reaction includes the condensation of O-ethyl and S-propyl groups with a substituted imidazolidine ring bearing a cyanoimino moiety. This synthesis requires precise control of reaction conditions to ensure the correct (E)-configuration of the final molecule.

High contact activity with and fast diffusion in soil. Acetylcholinesterase (AChE) inhibitor.

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