This chemical is widely used in the field of bioconjugation and drug delivery systems. Its structure, featuring Boc-protected PEG chains and PEG-acid groups, makes it highly suitable for creating linkers in peptide and protein modifications. The Boc group provides temporary protection during synthesis, allowing for selective reactions, while the PEG chains enhance solubility and stability of the conjugated molecules. It is particularly valuable in the development of antibody-drug conjugates (ADCs), where it helps in attaching cytotoxic drugs to antibodies with controlled release properties. Additionally, it is employed in the preparation of hydrogels and other biomaterials for tissue engineering, where its PEG components contribute to biocompatibility and controlled degradation. Its versatility also extends to nanotechnology, where it is used to functionalize nanoparticles for targeted drug delivery and imaging applications.