Used primarily as a key intermediate in the synthesis of sulfa drugs and agrochemicals, this compound plays an important role in the preparation of sulfonamide derivatives. Its reactive sulfonyl chloride group readily forms bonds with amines, making it valuable in the production of herbicides, fungicides, and pharmaceuticals. It is also employed in the development of specialty chemicals where the trifluoromethyl and chloro substituents enhance stability and bioactivity. Due to its electron-withdrawing groups, it supports reactions requiring high electrophilic character, especially in cross-coupling and condensation processes.