Used as a key intermediate in the synthesis of thiazide diuretic drugs, particularly in the production of hydrochlorothiazide and related compounds. Its functional groups enable selective chemical modifications essential for pharmaceutical development. The sulfamoyl and carboxylic acid moieties contribute to solubility and binding properties, making it valuable in medicinal chemistry for designing diuretics and antihypertensive agents. Also employed in research for developing new heterocyclic compounds with potential biological activity.