Primarily used in bioconjugation and drug delivery systems, this compound serves as a versatile linker due to its long polyethylene glycol (PEG) chain. The PEG chain enhances solubility, reduces immunogenicity, and prolongs circulation time of conjugated molecules in biological systems. It is commonly employed in attaching targeting ligands, such as antibodies or peptides, to therapeutic agents like drugs or nanoparticles. The amino group allows for easy modification and coupling with various functional groups, enabling precise control over the conjugation process. Additionally, it is utilized in the development of hydrogels and biomaterials, where its hydrophilic properties improve biocompatibility and stability. Its applications extend to diagnostic imaging, where it aids in creating contrast agents with improved performance.