Used in photoaffinity labeling studies to identify and map molecular interactions in biological systems. The diazirine group generates highly reactive carbenes upon UV irradiation, enabling covalent binding to nearby biomolecules such as proteins or nucleic acids. This allows researchers to capture transient interactions and study binding sites, protein-protein interactions, or ligand-receptor relationships with high spatial and temporal precision. The trifluoromethyl group enhances stability and labeling efficiency. Commonly applied in chemical biology, drug discovery, and proteomics for target identification and validation.