Used in bioconjugation and chemical biology, this compound is particularly valuable for linking biomolecules due to its azide group, which enables click chemistry reactions. It is often employed to modify peptides, proteins, or other macromolecules, allowing for the introduction of functional groups or the creation of complex molecular architectures. The Boc-protected aminooxy group provides a handle for further derivatization, making it versatile in drug delivery systems, targeted therapies, and the development of diagnostic tools. Its PEG spacer enhances solubility and reduces immunogenicity, making it suitable for biomedical applications.