Used as a photoinitiator in polymer chemistry, enabling rapid curing of resins upon exposure to light. It is particularly effective in UV-curing systems for coatings, inks, and adhesives due to its high efficiency and stability under irradiation. Also employed in photochemical reactions where controlled radical generation is required. Its derivatives show potential in organic light-emitting diodes (OLEDs) as emissive or electron-transport materials because of favorable luminescent properties. Additionally, it serves as a building block in synthesizing functional dyes and sensors responsive to environmental changes like pH or metal ions.