Used as a photoinitiator in UV-curable systems, particularly in coatings, inks, and adhesives. It efficiently generates free radicals upon exposure to ultraviolet light, promoting rapid polymerization of acrylate monomers. Offers good thermal stability and low yellowing, making it suitable for clear and white formulations. Often combined with co-initiators like amines to enhance curing speed and depth, especially in oxygen-inhibited environments. Also applied in printing inks and electronic materials where precise curing and durability are required.