This chemical is primarily used in bioconjugation and drug delivery systems due to its unique structure, which combines a Boc-protected amine, a PEG linker, and an amide bond. The PEG (polyethylene glycol) segment enhances solubility and reduces immunogenicity, making it suitable for modifying peptides, proteins, and other biomolecules. The Boc group provides protection for the amine during synthetic processes, allowing for selective deprotection when needed. It is commonly employed in the development of targeted therapeutics, such as antibody-drug conjugates (ADCs), where it serves as a spacer to link the drug molecule to the targeting antibody. Additionally, its amphiphilic nature makes it useful in creating nanoparticles and micelles for controlled drug release applications.