Used as an intermediate in the synthesis of pharmaceutical compounds, particularly in the development of sulfonamide-based drugs. It plays a role in creating biologically active molecules due to the presence of both sulfonyl and carboxylic acid functional groups, which can enhance binding to target enzymes or receptors. Commonly applied in medicinal chemistry for optimizing drug solubility and pharmacokinetic properties. Also utilized in research settings to design inhibitors for specific metabolic pathways.