This chemical is primarily utilized in the field of bioconjugation and drug delivery systems. It serves as a versatile linker for attaching polyethylene glycol (PEG) chains to various biomolecules, such as proteins, peptides, or nanoparticles. The PEGylation process enhances the stability, solubility, and circulation time of these biomolecules in biological systems, making it valuable in therapeutic applications. Additionally, the Boc (tert-butoxycarbonyl) protecting group allows for controlled and selective reactions during synthesis, ensuring precise modification of target molecules. Its application is particularly significant in the development of targeted cancer therapies, where it helps improve the efficacy and reduce the side effects of chemotherapeutic agents. Furthermore, it is used in research to study protein interactions and cellular uptake mechanisms, contributing to advancements in biochemistry and molecular biology.