This chemical is widely used in the field of bioconjugation and drug delivery due to its unique properties. It serves as a linker molecule, enabling the attachment of various compounds, such as drugs or targeting agents, to larger biomolecules like proteins or antibodies. Its polyethylene glycol (PEG) chain provides excellent solubility and reduces immunogenicity, making it ideal for improving the stability and bioavailability of therapeutic agents. Additionally, it is often employed in the development of antibody-drug conjugates (ADCs) and other targeted therapies, where precise delivery of active compounds to specific cells or tissues is crucial. Its versatility also extends to research applications, such as surface modification of nanoparticles and enhancing the performance of diagnostic tools.