Used as a key intermediate in the synthesis of angiotensin II receptor antagonists, particularly in the production of sartan-class antihypertensive drugs like candesartan and valsartan. Its tetrazole ring mimics the carboxylic acid group in biological systems, enhancing binding affinity to the angiotensin II receptor. Widely employed in pharmaceutical research and development for cardiovascular medications. Also utilized in the preparation of other bioactive molecules where tetrazole functionality is required for activity.