Used as a key intermediate in the synthesis of angiotensin II receptor antagonists, particularly in the development of sartan-class antihypertensive drugs. Its structure supports the formation of biologically active molecules that block the action of angiotensin II, a substance in the body that causes blood vessels to narrow. This leads to reduced blood pressure and improved cardiovascular outcomes. The compound’s sulfonic acid group enhances water solubility, which can improve the pharmacokinetic profile of the final drug product. It is primarily employed in pharmaceutical research and development for creating more effective and selective hypertension treatments.