Used in bioconjugation and drug delivery systems, this compound serves as a linker molecule due to its polyethylene glycol (PEG) chain, which enhances solubility and reduces immunogenicity. The Cbz (carbobenzyloxy) group provides protection for amines during chemical synthesis, while the terminal carboxylic acid allows for easy attachment to other molecules, such as peptides, proteins, or drugs. Its application is particularly valuable in creating targeted therapeutic agents, improving bioavailability, and enabling controlled release mechanisms in pharmaceutical formulations. Additionally, it is utilized in the development of bioconjugates for diagnostic imaging and research tools in biochemistry.