This compound is widely used in the field of bioconjugation and drug delivery. It serves as a linker molecule, enabling the attachment of various bioactive molecules to peptides, proteins, or other drug candidates. The PEG (polyethylene glycol) spacer enhances solubility and reduces immunogenicity, making it valuable in the development of therapeutic agents. The NHBoc (tert-butyloxycarbonyl) protecting group allows for selective deprotection during synthesis, facilitating precise chemical modifications. It is particularly useful in the preparation of antibody-drug conjugates (ADCs) and targeted drug delivery systems, where controlled release and stability are critical. Additionally, it finds applications in the synthesis of complex biomolecules for research and pharmaceutical purposes.