Used in surface modification for biosensors and electrochemical devices due to its ability to form stable self-assembled monolayers on gold surfaces. The disulfide group anchors to the metal, while the perfluorophenyl ester enables efficient conjugation with nucleophiles like amines, making it ideal for immobilizing biomolecules such as proteins or DNA. Its fluorinated aromatic ring enhances stability and promotes specific interactions in sensing applications. Commonly applied in developing highly sensitive diagnostic platforms and functional interfaces in bioelectronics.