Used extensively in bioconjugation and drug delivery systems, this compound serves as a linker to improve the solubility and stability of therapeutic agents. It is particularly valuable in modifying proteins, peptides, and nanoparticles, enhancing their pharmacokinetic properties and reducing immunogenicity. Additionally, it is employed in the development of targeted drug delivery systems, where it helps in attaching specific ligands to drug carriers, ensuring precise delivery to diseased tissues. Its hydrophilic PEG segment also aids in prolonging circulation time in the bloodstream, making it a critical component in advanced biomedical applications.