Used as an intermediate in the synthesis of sulfa drugs, particularly in the production of sulfonamide antibiotics. Its structure allows for the introduction of sulfone and amine functional groups, which are key in enhancing the biological activity of pharmaceuticals. Commonly employed in organic synthesis to build more complex molecules with antimicrobial properties. Also utilized in the development of dyes and pigments due to its aromatic amine and sulfone moieties, which contribute to color stability and solubility characteristics.