Used as a photoinitiator in radical polymerization reactions, particularly in UV-curable systems. It enables rapid curing of coatings, inks, and adhesives upon exposure to ultraviolet or visible light. Exhibits high efficiency due to strong absorption in the near-UV range and generates reactive radicals effectively under mild conditions. Suitable for applications requiring low migration and high transparency, such as in dental materials and precision electronics encapsulation. Stable in storage and shows good compatibility with various monomer formulations.