Used primarily as a reagent in organic synthesis, it plays a key role in the introduction of the trichloromethanesulfonyl group into various organic compounds. This chemical is particularly valuable in the preparation of sulfonamides, which are important in the development of pharmaceuticals and agrochemicals. Additionally, it is utilized in the synthesis of polymers and as an intermediate in the production of dyes and other specialty chemicals. Its reactivity with nucleophiles makes it a versatile tool in creating complex molecular structures in research and industrial applications.