Used as a key intermediate in the synthesis of angiotensin II receptor antagonists, particularly in the production of sartan-class antihypertensive drugs such as valsartan and losartan. The tetrazole moiety serves as a critical pharmacophore, while its carboxylic acid and thiol functional groups facilitate coupling reactions essential for constructing the full pharmaceutical structures. Also employed in coordination chemistry as a ligand for metal ions owing to its sulfur and nitrogen donor sites, enabling applications in metal-organic frameworks and sensors. Additionally, its reactivity supports modifications for bioconjugation and targeted drug delivery systems.