Used as a key intermediate in organic synthesis, particularly in the production of pharmaceuticals and agrochemicals. Its dual sulfonyl chloride groups allow for cross-linking reactions, making it valuable in the preparation of polymers and resins with enhanced thermal and chemical resistance. Commonly employed in the synthesis of sulfa drugs and other bioactive molecules where controlled sulfonamide bond formation is required. Also utilized in material science for modifying surfaces and creating functionalized frameworks in porous materials.