Used as a photoinitiator in UV-curable systems, particularly in coatings, inks, and adhesives. It efficiently generates free radicals upon exposure to ultraviolet light, enabling rapid polymerization of acrylate-based resins. Offers good solubility in polar monomers and exhibits low yellowing, making it suitable for clear and white formulations. Often blended with other photoinitiators to enhance surface cure and overcome oxygen inhibition in thin films.