Used as an intermediate in organic synthesis, particularly in pharmaceutical and agrochemical industries. It serves as a sulfonylating agent, introducing the 3-fluorobenzenesulfonyl group into target molecules to modify reactivity or stability. Commonly employed in the preparation of sulfonamide derivatives, which are key structural motifs in bioactive compounds. Also utilized in medicinal chemistry for the development of fluorinated analogs with enhanced metabolic stability and binding affinity. Its fluorinated aromatic ring improves lipophilicity and membrane permeability in drug design.