Used as a photoaffinity labeling agent in biochemical research, enabling the study of protein-ligand interactions by forming covalent bonds with target molecules upon UV irradiation. Its azide group generates reactive nitrene species, making it valuable for probing binding sites in enzymes and receptors. Also employed in click chemistry applications for bioconjugation and material science due to its ability to undergo azide-alkyne cycloaddition reactions. Stable under ambient conditions but reacts selectively upon activation, allowing controlled functionalization in complex systems.