Used in photoaffinity labeling studies to probe protein-ligand interactions. Upon exposure to light, the diazirine group generates a reactive carbene species that forms covalent bonds with nearby biomolecules, enabling the identification and mapping of binding sites in complex biological systems. The trifluoromethyl group enhances stability and increases lipophilicity, improving membrane permeability for use in live-cell labeling. The tert-butyl carbamate (Boc) group acts as a protecting group, allowing for controlled deprotection in synthetic sequences. Commonly applied in chemical biology and drug discovery to study protein-protein interactions and validate target engagement of small molecules.