Used primarily in photopolymerization processes as a photoinitiator, enabling rapid curing of coatings, inks, and adhesives under UV or visible light. It is especially effective in dental composites and 3D printing resins due to its high sensitivity and efficiency in initiating free radical reactions. Its ability to absorb light in the near-UV to visible range makes it suitable for applications requiring low-energy light sources. Also employed in holographic recording materials and photoresists for microelectronics fabrication.