Used as a photoinitiator in UV-curable systems, this compound is highly effective in radical polymerization reactions triggered by light. It is especially valued in dental composites, coatings, and 3D printing resins due to its strong absorption in the near-UV range and ability to generate free radicals efficiently under visible light exposure. Its high photostability and low yellowing tendency make it suitable for applications requiring clarity and long-term performance. Additionally, it is employed in combination with co-initiators to enhance curing speed and depth in thick or pigmented formulations.