Used in bioconjugation and chemical synthesis, this compound serves as a linker for attaching molecules to proteins, peptides, or other biomolecules. Its PEG4 spacer enhances solubility and reduces steric hindrance, making it ideal for drug delivery systems and targeted therapies. The T-Boc group provides protection for the aminoxy functionality during synthesis, allowing selective deprotection for subsequent reactions. It is commonly employed in the development of antibody-drug conjugates (ADCs) and other bioconjugates, enabling precise and stable connections between therapeutic agents and targeting molecules. Additionally, it finds use in surface modification and material science for creating functionalized surfaces with specific biological activities.