Used as a key intermediate in the synthesis of various pharmaceutical compounds, particularly in the development of drugs targeting central nervous system disorders. It plays a crucial role in the production of indazole derivatives, which are explored for their potential anti-inflammatory, anticancer, and antimicrobial properties. Additionally, it is utilized in organic chemistry research for creating sulfonamide-based molecules, which are important in designing enzyme inhibitors and receptor modulators. Its reactive sulfonyl chloride group makes it valuable for coupling reactions in medicinal chemistry.