1. 毒死蜱杂质(O,O-双-(3,5,6-三氯吡啶-2-基)硫代磷酸氢)

毒死蜱杂质(O,O-双-(3,5,6-三氯吡啶-2-基)硫代磷酸氢)

Chlorpyrifos impurity(O,O-bis-(3,5,6-trichloropyridin-2-yl) hydrogen thiophosphate)