Used as a key intermediate in the synthesis of angiotensin II receptor antagonists, such as valsartan and other sartan-class antihypertensive drugs. Its tetrazole ring mimics the carboxylic acid group in biological systems, enhancing binding to the AT1 receptor. Commonly employed in pharmaceutical research and development for constructing nitrogen-rich heterocyclic compounds. Also utilized in coordination chemistry as a ligand due to its ability to donate electrons through multiple nitrogen atoms. Shows potential in the development of energetic materials because of the high thermal stability and energy density of the tetrazole moiety.