This compound is widely used in bioconjugation and protein modification due to its reactive PFP ester group, which allows efficient coupling with amines. The maleimide group enables selective conjugation with thiols, making it valuable for linking peptides, proteins, or antibodies. Its PEG12 spacer enhances solubility and reduces steric hindrance, improving reaction efficiency. It is particularly useful in drug delivery systems, antibody-drug conjugates, and the development of diagnostic probes. Additionally, it plays a role in surface functionalization of nanoparticles and biomaterials for targeted therapies.