Similar names: Phosphoric acid, diethyl 3,5,6-trichloro-2-pyridyl ester (7CI,8CI); 2-Pyridinol, 3,5,6-trichloro-, diethyl phosphate (ester) (8CI); 3,5,6-Trichloro-2-pyridyl diethyl phosphate; Chloropyrifos oxon; Chlorpyrifos oxon; Chlorpyrifos-ethyl oxon; Chlorpyrifoxon; Chlorpyriphoxon; Diethyl 3,5,6-trichloro-2-pyridyl phosphate; Dursban oxygen analog; Dursbanoxon; Fospirate-ethyl; O,O-Diethyl O-3,5,6-trichloro-2-pyridyl phosphate; O-(3,5,6-Trichloro-2-pyridinyl) O,O-diethyl phosphate