Tetrazole solution is widely used in pharmaceutical synthesis, particularly as a building block in the development of angiotensin II receptor antagonists, such as losartan and candesartan, which are used to treat hypertension. It plays a key role in click chemistry due to its ability to participate in cycloaddition reactions, making it valuable in drug discovery and bioconjugation. In materials science, tetrazole derivatives contribute to the formulation of high-energy compounds and are used in propellants and explosives because of their thermal stability and high nitrogen content. Additionally, tetrazole solutions serve as catalysts or ligands in certain metal-mediated reactions, enhancing reaction efficiency in organic synthesis.