Used as an intermediate in the synthesis of biologically active compounds, particularly in pharmaceutical research. It serves as a key building block in the development of sulfonamide-based drugs, which exhibit a range of biological activities including antimicrobial, anti-inflammatory, and enzyme inhibitory effects. Its structure allows for selective modifications, making it valuable in medicinal chemistry for optimizing drug potency and selectivity. Commonly employed in the preparation of protease inhibitors and receptor antagonists in early-stage drug discovery.