【CAS No.】: 2921-88-2

【CAS】: O,O-diethyl O-(3,5,6-trichloro-2-pyridinyl) phosphorothioate

【Molecular Formula】: C9H11Cl3NO3PS

【Molecular weight】:350.6;

【Physical form】:Colourless crystals, with a mild mercaptan odour.

【Density】:1.44 (20 °C); Melting point:42-43.5 °C;

【Vapour pressure】:2.7 mPa (25 °C);

【Henry constant】:6.76×10-1 Pa m3 mol-1 (calc.);

【Partition coefficient(n-octanol and water)】:logP = 4.7;

【Solubility】:In water c. 1.4 mg/l (25 °C). In benzene 7900, acetone 6500, chloroform 6300, carbon disulfide 5900, diethyl ether 5100, xylene 5000, iso-octanol 790, methanol 450 (all in g/kg, 25 °C).;

【Stability】:Rate of hydrolysis increases with pH, and in the presence of copper and possibly of other metals that can form chelates; DT50 1.5 d (water, pH 8, 25 °C) to 100 d (phosphate buffer).

Soluble in acetone, benzene, chloroform, ethanol, iso-octane, methanol, and organic solvents.