Used in pharmaceutical research as an intermediate in the synthesis of biologically active compounds, particularly in the development of sulfonamide-based drugs. Its halogen substituents (bromo, fluoro, and iodo) allow for further functionalization through cross-coupling reactions, making it valuable in medicinal chemistry for modifying molecular structure and enhancing binding affinity. Commonly employed in the preparation of potential anticancer, antimicrobial, or anti-inflammatory agents where the sulfonamide group plays a key role in biological activity. Also utilized in radiolabeling studies due to the presence of iodine, enabling imaging and tracer applications in drug metabolism research.