Used as an intermediate in the synthesis of sulfa drugs, particularly sulfonamide antibiotics. It plays a key role in pharmaceutical manufacturing where it contributes to the development of antimicrobial agents. Its structure allows for the formation of biologically active compounds that inhibit bacterial growth by interfering with folic acid synthesis. Also utilized in research for developing new therapeutic agents and in the production of dyes and pigments due to its aromatic and sulfonamide functional groups.