Used primarily as a photoinitiator in UV-curable coatings, inks, and adhesives. It facilitates the rapid polymerization process when exposed to ultraviolet light, making it essential in industries requiring fast-drying and durable finishes. Additionally, it is employed in the production of optical materials and photoresists for microelectronics, where precise and controlled curing is critical. Its ability to generate free radicals under UV exposure also makes it suitable for advanced research in photochemistry and material science.