Used as an intermediate in the synthesis of pharmaceuticals, particularly in the development of sulfa drugs with antimicrobial properties. It serves as a building block in organic synthesis for creating sulfonamide-based compounds that exhibit biological activity. Its structure allows for modification to enhance drug efficacy and selectivity. Also employed in research settings to study enzyme inhibition, especially in carbonic anhydrase inhibitors, due to the sulfonamide group's affinity for zinc ions in active sites.