Used primarily as an intermediate in the synthesis of organophosphorus compounds, it plays a key role in the production of pesticides and insecticides. Its reactivity with various organic compounds makes it valuable in creating thiophosphoryl derivatives, which are essential in agricultural chemicals. Additionally, it is employed in the development of flame retardants and lubricant additives due to its ability to impart specific chemical properties. In research, it serves as a reagent for modifying molecules to study their biological or chemical behavior.