Alias: O,O-diethyl O-3,5,6-trichloro-2-pyridyl phosphorothioate; ANSI; ISO; BSI; Dowco179; ENT27311; O,O-diethyl-O-(3,5,6-trichloro-2-pyridyl)phos-phorothioate; Clorpyrifos; Phosphorothioic acid O,O-diethyl O-(3,5,6-trichloro-2-pyridinyl) ester; Chlorpyritos; Eradex; Lorsban; Trichlorpyrphos; Chlorpyriphos; O,O-diethyl O-(3,5,6-trichloropyridin-2-yl) phosphorothioate; O,O-diethyl S-(3,5,6-trichloropyridin-2-yl) thiophosphate

Appearance: white crystal