This chemical is widely used in bioconjugation and click chemistry applications due to its dual functional groups: the azide and the Boc-protected amine. The azide group allows for efficient and selective reactions with alkynes via copper-catalyzed azide-alkyne cycloaddition (CuAAC), making it valuable for labeling biomolecules such as proteins, peptides, and nucleic acids. The Boc-protected amine provides a handle for further functionalization once deprotected, enabling the attachment of additional molecules or probes. Its PEG (polyethylene glycol) spacers enhance solubility and reduce steric hindrance, improving reaction efficiency in biological systems. This compound is particularly useful in drug delivery systems, surface modification, and the development of biomaterials where controlled and site-specific conjugation is required.