Used as an intermediate in the synthesis of pharmaceutical compounds, particularly in the development of sulfonamide-based drugs with potential antimicrobial and anti-inflammatory properties. It serves as a building block for modifying molecular structures to enhance drug efficacy and selectivity. Also employed in research settings for designing enzyme inhibitors due to the sulfonamide group's ability to interact with biological targets. Its carboxylic acid functionality allows for further chemical derivatization, making it valuable in medicinal chemistry and drug discovery processes.