Used primarily in organic synthesis, this compound serves as a key reagent for introducing the trifluoromethylphenylsulfonyl group into molecules. It is widely employed in the preparation of sulfonamides, which are valuable in pharmaceutical research for developing drugs with antibacterial, antiviral, or anticancer properties. Additionally, it is utilized in the production of agrochemicals, where the trifluoromethyl group enhances the biological activity of pesticides and herbicides. Its reactivity with amines and alcohols makes it a versatile building block in the synthesis of complex organic compounds.