This chemical is primarily used in the field of bioconjugation and drug delivery systems. Its structure, featuring a Boc-protected amine and a polyethylene glycol (PEG) spacer, makes it highly suitable for creating stable linkages between biomolecules. It is often employed in the modification of peptides, proteins, and other therapeutic agents to enhance their solubility, stability, and circulation time in the body. The Boc group allows for controlled deprotection, enabling precise conjugation strategies. Additionally, its PEG component reduces immunogenicity and improves biocompatibility, making it valuable in the development of targeted drug delivery systems and biopharmaceuticals.