Used as a key intermediate in the synthesis of quinoline-based dyes and fluorescent probes due to its extended conjugated system. Its strong electron-withdrawing nature makes it suitable for nonlinear optical materials and organic semiconductors. Also employed in photovoltaic cells as a sensitizer in dye-sensitized solar cells (DSSCs), enhancing light absorption in the visible range. Shows potential in bioimaging applications owing to its fluorescence properties when incorporated into specific molecular frameworks.