Several O,O-dialkylnitrophenyltrithioperoxyphosphates are synthesized according to the following chemical equation.

It has been found that the reaction proceed,smoothly with yieeds up to 90%.In spite of the structural similarity of these compounds with E-605, all of these coma pounds, with the exception of O,O-diethyl 4-nitrophenyltrithioperoxyphosphate, exhibit extremely feeble insecticial activities.The O,O-dialkyl nitrophenyltrithioperoxyphosphates are stable at room temperature in solid state, but at elevated temperature or in refluxing ethyl alcohol, they decompose exclusively into nitrophenyldisulfides and othet products.