Used as a photoinitiator in UV-curable formulations, particularly in inks, coatings, and adhesives. It enables rapid curing under ultraviolet light by generating free radicals that initiate polymerization. Offers good solubility in polar monomers and low yellowing in clear coatings, making it suitable for high-performance and aesthetic-sensitive applications. Also found in some dental materials and 3D printing resins due to its efficiency and stability.