Methoxypolyethylene glycol amine is widely used in the pharmaceutical industry for the modification of proteins and peptides, enhancing their solubility and stability in biological systems. It is also employed in drug delivery systems to improve the pharmacokinetics and bioavailability of therapeutic agents. In bioconjugation, it serves as a linker to attach drugs or imaging agents to targeting molecules, facilitating targeted therapy and diagnostics. Additionally, it is utilized in the development of hydrogels and other biomaterials for tissue engineering and regenerative medicine applications. Its biocompatibility and ability to reduce immunogenicity make it a valuable component in various biomedical and biotechnological applications.