This chemical is widely used in bioconjugation and drug delivery systems due to its polyethylene glycol (PEG) spacer, which enhances solubility and reduces immunogenicity. It is particularly valuable in modifying peptides, proteins, and other biomolecules to improve their stability and prolong their circulation time in the body. The amino group allows for easy attachment to carboxylic acids or other reactive groups, making it a versatile linker in the development of targeted therapies and diagnostic agents. Additionally, it is employed in the synthesis of hydrogels and other biocompatible materials for tissue engineering and regenerative medicine applications. Its hydrophilic PEG chain also aids in reducing non-specific interactions, making it useful in surface modification for biosensors and medical devices.