Used as a photoinitiator in UV-curable formulations, enabling rapid polymerization of resins upon exposure to ultraviolet light. It is particularly effective in coatings, inks, and adhesives where deep curing and high efficiency are required. Its structure allows for strong absorption in the UV range, making it suitable for clear and pigmented systems. Offers good thermal stability and low yellowing, which is beneficial in applications requiring optical clarity and long-term durability.