This compound is widely used in bioconjugation and chemical biology applications due to its unique properties. It serves as a linker molecule for attaching various functional groups, such as peptides, proteins, or other biomolecules, to surfaces or other molecules. The T-Boc protecting group ensures stability during synthesis, while the aminooxy group allows for efficient oxime ligation with carbonyl-containing compounds. The PEG4 spacer enhances solubility and reduces steric hindrance, making it ideal for creating well-defined conjugates. It is particularly useful in drug delivery systems, where it facilitates the targeted release of therapeutic agents. Additionally, it plays a role in the development of biosensors and diagnostic tools by enabling precise attachment of detection molecules to substrates. Its versatility makes it a valuable tool in research and industrial applications requiring controlled and specific molecular interactions.