Used as an intermediate in the synthesis of sulfonamide antibiotics, particularly in the production of antimicrobial agents. It plays a key role in the development of sulfa drugs, which inhibit bacterial growth by interfering with folic acid synthesis. Commonly utilized in pharmaceutical manufacturing for creating active pharmaceutical ingredients (APIs) with antibacterial properties. Also serves in research settings for developing new therapeutic compounds and in the preparation of dyes and functional materials due to its reactive amino and sulfonamide groups.