Primarily used in organic synthesis as a reagent for introducing the tosylmethyl group into molecules. It is particularly valuable in the preparation of sulfonamides, which are important intermediates in pharmaceutical and agrochemical industries. Additionally, it serves as a key component in the synthesis of various heterocyclic compounds, contributing to the development of drugs and bioactive molecules. Its reactivity with nucleophiles makes it useful in creating complex organic structures, aiding in the production of fine chemicals and specialty materials.