Used primarily as a photoactivatable crosslinking agent in biochemical and proteomic research. Upon exposure to UV light, it generates highly reactive species that form covalent bonds with nearby biomolecules, enabling the study of protein-protein interactions, ligand-receptor binding, and molecular proximity in complex biological systems. Its aromatic amine group allows for easy incorporation into larger molecules through standard conjugation chemistry, making it valuable for labeling and affinity-based assays.