Used primarily as a photoinitiator in UV-curable systems, this compound plays a key role in polymer chemistry. It enables rapid curing of coatings, inks, and adhesives upon exposure to ultraviolet light. Due to its efficient radical generation under UV irradiation, it is valued in dental composites and 3D printing resins where deep penetration and fast setting are required. Its structure allows for good solubility in monomeric matrices and minimal yellowing after cure, making it suitable for clear and aesthetic-sensitive applications.