Used as a photoinitiator in UV-curable systems, particularly in inks, coatings, and adhesives. It efficiently generates free radicals upon exposure to UV or visible light, enabling rapid polymerization of acrylate-based resins. Offers good solubility in polar and non-polar monomers, low yellowing, and high reactivity under LED light sources, making it suitable for printing and electronic applications where clarity and speed are critical.