This chemical is widely used in bioconjugation and drug delivery systems due to its polyethylene glycol (PEG) spacer, which enhances solubility and reduces immunogenicity. It serves as a linker in peptide synthesis, enabling the attachment of functional groups or molecules while protecting the amine group during reactions. The Boc (tert-butyloxycarbonyl) group provides stability in acidic conditions, making it suitable for stepwise synthesis processes. Additionally, its hydrophilic PEG chain improves the pharmacokinetic properties of conjugated drugs, making it valuable in the development of therapeutic agents, particularly in cancer treatment and targeted drug delivery. It is also utilized in the creation of hydrogels and biomaterials for tissue engineering applications.