Used as a photoinitiator in UV-curable formulations, this compound plays a key role in inks, coatings, and adhesives that require rapid curing under light exposure. It helps generate free radicals upon UV irradiation, initiating polymerization of monomers and oligomers. Its structure supports efficient radical formation and compatibility with various resin systems, making it suitable for clear coatings and pigmented systems where deep cure and low yellowing are important. Also found in dental composites and 3D printing resins due to reliable performance and stability in storage.