Used as a cross-linking agent in peptide synthesis and bioconjugation, enabling the formation of disulfide bonds in a controlled manner. Its trifluoroacetyl groups provide stability and selective deprotection under mild conditions, making it valuable in solid-phase synthesis and the preparation of cyclic peptides. Also employed in the development of pharmaceutical intermediates where reversible disulfide linkages are required. Its fluorinated structure enhances solubility in organic solvents and improves detection in analytical methods like NMR and mass spectrometry.