Used as a key intermediate in the synthesis of angiotensin II receptor antagonists, particularly in the production of antihypertensive drugs like valsartan and related sartan-class medications. Its tetrazole ring mimics the carboxylic acid group in biological systems, enhancing binding affinity to the angiotensin II receptor. Also employed in medicinal chemistry for developing new bioactive molecules due to its metabolic stability and ability to improve pharmacokinetic properties.