Used primarily as a photoinitiator in UV-curable systems, this compound plays a key role in inks, coatings, and adhesives. It efficiently generates free radicals upon exposure to ultraviolet light, enabling rapid polymerization of acrylate-based resins. Commonly found in printing inks and clear coatings, it offers good surface cure and works well in pigmented formulations. Its low yellowing and high reactivity make it suitable for applications requiring clarity and fast curing speeds.