Used as a crosslinking agent in bioconjugation processes, it enables the attachment of biomolecules like proteins, peptides, or antibodies to other molecules or surfaces. Its PEG (polyethylene glycol) spacer enhances solubility and reduces steric hindrance, making it ideal for applications in drug delivery systems, diagnostics, and targeted therapies. The PFP (pentafluorophenyl) ester group reacts efficiently with amines, facilitating stable amide bond formation. It is particularly valuable in creating antibody-drug conjugates (ADCs) and other bioconjugates for therapeutic and research purposes.