Used primarily as a reactive intermediate in organic synthesis, particularly in click chemistry and photochemical labeling applications. Its azide group readily participates in Huisgen cycloaddition reactions with alkynes to form triazole linkages, useful in bioconjugation and pharmaceutical research. The conjugated acrylic acid structure allows for UV-triggered activation, making it suitable for photoprobes and crosslinking agents in studying biomolecular interactions. Also employed in the development of functional polymers and surface modification of materials where controlled, covalent attachment is required.