This compound is primarily used in the field of bioconjugation and peptide synthesis. It serves as a linker molecule, facilitating the attachment of various biomolecules, such as peptides or proteins, to other substrates or surfaces. Its structure, featuring both a Boc-protected amino group and a carboxylic acid group, allows for controlled and selective reactions, making it valuable in creating complex molecular architectures. Additionally, its polyethylene glycol (PEG) spacer enhances solubility and reduces steric hindrance, which is particularly useful in developing drug delivery systems and bioconjugates for therapeutic applications. It is also employed in surface modification techniques, enabling the functionalization of materials for biomedical research and diagnostics.