Used primarily as an intermediate in the synthesis of organophosphorus compounds, especially in the production of certain pesticides and insecticides. It plays a key role in the development of thiophosphate derivatives that exhibit biological activity against pests. Due to its reactivity, it enables the introduction of methylthiophosphate groups into larger molecules, enhancing their effectiveness as agrochemicals. Its application is mostly confined to controlled industrial settings due to its high reactivity and potential toxicity.