Used primarily as a photoinitiator in UV-curable formulations such as inks, coatings, and adhesives. It absorbs ultraviolet light to generate free radicals, initiating rapid polymerization of monomers and oligomers. Commonly found in printing inks, electronics encapsulation, and dental materials due to its efficient curing under UV light and good solubility in resin systems. Also employed in some fragrance compositions for its aromatic characteristics.