This chemical is widely used in bioconjugation and drug delivery systems due to its PEG (polyethylene glycol) spacer, which enhances solubility and reduces immunogenicity. The Boc (tert-butyloxycarbonyl) protecting group allows for selective deprotection, enabling controlled reactions in peptide synthesis. The amine group at the terminal end facilitates coupling with various biomolecules, making it valuable in creating targeted therapeutics, such as antibody-drug conjugates. Additionally, it is employed in the development of hydrogels and other biocompatible materials for tissue engineering and regenerative medicine. Its versatility also extends to surface modification of nanoparticles, improving their stability and biocompatibility for biomedical applications.