Used primarily as a photoinitiator in UV-curable formulations. It is effective in free radical polymerization processes, especially in coatings, inks, and adhesives that require rapid curing under UV light. Offers good yellowing resistance and surface cure, making it suitable for clear coatings and white pigmented systems. Often chosen for its compatibility with acrylate-based resins and its ability to function well in low-odor, low-migration applications. Also utilized in some dental composites and 3D printing resins where controlled, efficient curing is essential.