This chemical is widely used in bioconjugation applications, particularly for attaching proteins, peptides, or other biomolecules to surfaces or other molecules. Its trifluorophenyl (TFP) ester group reacts efficiently with primary amines, enabling stable amide bond formation. The PEG8 spacer enhances solubility and reduces steric hindrance, making it ideal for creating biocompatible conjugates in drug delivery systems, diagnostic assays, and targeted therapies. Its malemide group allows for specific thiol coupling, facilitating the attachment of cysteine-containing proteins or thiol-modified molecules. This versatility makes it a valuable tool in the development of bioconjugates for research and therapeutic purposes.