This chemical is primarily used in bioconjugation and click chemistry applications. It serves as a linker molecule, enabling the attachment of biomolecules, such as proteins, peptides, or nucleic acids, to other functional groups or surfaces. The azide group allows for efficient and selective reactions with alkyne-containing compounds via copper-catalyzed azide-alkyne cycloaddition (CuAAC), a widely used click chemistry reaction. The PEG (polyethylene glycol) spacer enhances solubility, reduces steric hindrance, and improves biocompatibility, making it suitable for use in drug delivery systems, biopharmaceuticals, and diagnostic tools. Its application is particularly valuable in the development of targeted therapies, imaging agents, and biomaterial modifications.