Used as a key intermediate in the synthesis of sulfa drugs and other biologically active sulfonamide compounds. Its dual sulfone functionality allows it to act as a bridging agent in cross-coupling reactions, particularly in the development of pharmaceuticals and agrochemicals. Commonly employed in the preparation of photoacid generators for advanced lithography in semiconductor manufacturing. Also utilized in the formulation of water-soluble polymers and as a catalyst precursor in certain organic transformations. Its stability and reactivity make it suitable for use in high-temperature reactions and solid-state synthesis processes.