Used as a photoinitiator in UV-curable systems, particularly in inks, coatings, and adhesives. It enables efficient radical generation upon UV exposure, promoting rapid polymerization and curing under low-intensity light. Suitable for clear coatings and pigmented systems due to its good light absorption in the long UV to visible range. Offers low yellowing and improved surface cure, especially in oxygen-rich environments. Commonly applied in digital printing, electronics, and industrial finishing where deep and reliable curing is required.