Used in bioconjugation and drug delivery systems, it serves as a linker molecule to attach therapeutic agents or targeting moieties to biomolecules like proteins or peptides. Its PEG spacer enhances solubility and reduces immunogenicity, making it valuable in developing antibody-drug conjugates (ADCs) and other biopharmaceuticals. Additionally, it is utilized in modifying surfaces for biosensors or diagnostic tools, improving biocompatibility and stability. The acetyl group provides protection for the amine during synthesis, ensuring controlled and efficient reactions.