Used as a photoinitiator in polymer chemistry, particularly in UV-curable systems. It absorbs light in the near-UV range and generates free radicals, initiating the polymerization of acrylates and other monomers. This makes it valuable in coatings, inks, and adhesives that cure rapidly under UV light. Also investigated for use in organic semiconductors and as a redox-active component in certain electrochemical applications due to its stable quinone structure.