pirimiphos methyl and its Impurities

Pirimiphos Methyl is a phosphorothioate used as an insecticide. Pirimiphos Methyl marketed as Actellic. Pyrimiphos-ethyl is a related insecticide in which the methyl groups are replaced with ethyl groups.Reference standards of Pirimiphos Methyl API,and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.