This chemical is widely used in bioconjugation and click chemistry applications due to its multiple functional groups. The azide group enables efficient and selective reactions with alkynes via copper-catalyzed azide-alkyne cycloaddition (CuAAC), making it valuable for labeling biomolecules like proteins, peptides, and nucleic acids. The Boc-protected amine group allows for controlled deprotection, enabling further modifications or coupling reactions. The terminal carboxylic acid group facilitates amide bond formation with amines, allowing attachment to various substrates. Its PEG (polyethylene glycol) spacers enhance solubility, reduce steric hindrance, and improve biocompatibility, making it ideal for creating stable conjugates. It is particularly useful in drug delivery systems, surface functionalization, and the development of bioprobes for imaging and diagnostic purposes.