Used primarily as an intermediate in the synthesis of agrochemicals and pharmaceuticals. Its reactive sulfonyl chloride group enables the formation of sulfonamides and sulfonate esters, which are key structural motifs in bioactive molecules. Commonly employed in the development of herbicides and fungicides due to the enhanced stability and lipophilicity imparted by the halogenated aromatic ring. Also utilized in medicinal chemistry for constructing enzyme inhibitors and receptor ligands, where the chlorine and fluorine substituents influence binding affinity and metabolic resistance.