Used as an intermediate in the synthesis of dyes and pigments, particularly in the production of azo dyes where its sulfonamide groups enhance water solubility and binding to fibers. Also employed in the development of certain pharmaceuticals, serving as a building block for compounds with biological activity, including potential carbonic anhydrase inhibitors. Its rigid benzene ring with two sulfonamide functionalities makes it suitable for designing molecules in medicinal chemistry and materials science, especially in creating polymers with enhanced thermal and chemical stability.