Used primarily as a photoactivatable crosslinking agent in biochemical and biophysical research. It enables covalent bonding between biomolecules such as proteins, peptides, and nucleic acids upon exposure to UV light. The compound is especially valuable in studying molecular interactions, as it can capture transient or weak interactions in complex biological systems. Commonly conjugated to amine-containing molecules via its NHS ester group, it allows for site-specific labeling and immobilization on surfaces or within matrices. Widely applied in proteomics, receptor-ligand studies, and the development of biosensors and diagnostic assays.