Used in bioconjugation and click chemistry applications, this compound is valuable for attaching biomolecules to surfaces or other molecules. The T-Boc group protects the aminooxy functionality, allowing selective deprotection for controlled reactions. The PEG2 spacer enhances solubility and reduces steric hindrance, while the propargyl group enables efficient alkyne-azide cycloaddition reactions. It is commonly employed in the synthesis of antibody-drug conjugates, peptide modifications, and the development of bioconjugation probes for research and therapeutic purposes. Its versatility makes it a key reagent in drug discovery and biomaterial engineering.