Used primarily as a photoinitiator in UV-curable formulations. It is effective in free radical polymerization processes triggered by ultraviolet light. Commonly found in coatings, inks, and adhesives where rapid curing under UV light is required. Offers good yellowing resistance and performance in thin films. Suitable for clear coats and pigmented systems due to its ability to initiate curing under low-intensity UV sources. Also used in some dental composites and 3D printing resins for its efficient radical generation upon exposure to light.