This chemical is primarily used in bioconjugation and click chemistry applications. It serves as a linker molecule for attaching biomolecules, such as peptides or proteins, to other entities like surfaces, polymers, or nanoparticles. The Boc group provides protection for the aminooxy functionality during synthesis, while the azide group enables efficient conjugation via copper-catalyzed azide-alkyne cycloaddition (CuAAC) reactions. The PEG3 spacer enhances solubility and reduces steric hindrance, making it ideal for creating stable and functional bioconjugates in drug delivery, diagnostics, and materials science research.