This compound is widely used in bioconjugation and click chemistry applications. It serves as a linker molecule for attaching functional groups, such as peptides, proteins, or other biomolecules, to surfaces or other molecules. The T-Boc group provides protection for the aminooxy functionality, which can be deprotected when needed for specific reactions. The PEG (polyethylene glycol) spacer enhances solubility and reduces steric hindrance, making it ideal for biological applications. The propargyl group enables efficient copper-catalyzed azide-alkyne cycloaddition (CuAAC), a popular click chemistry reaction. It is particularly useful in drug delivery systems, surface modifications, and the development of bioconjugates for targeted therapies.