Used primarily as a key intermediate in the synthesis of pharmaceuticals and agrochemicals. Its reactive sulfonyl chloride group enables the formation of sulfonamides, which are common structural motifs in bioactive molecules. It is particularly valuable in the development of herbicides and fungicides due to the electron-withdrawing trifluoromethyl and bromo substituents enhancing stability and target binding. Also employed in medicinal chemistry for constructing kinase inhibitors and other enzyme modulators. The compound’s halogen atoms allow further functionalization via cross-coupling reactions, expanding its utility in drug discovery and materials science.