Used in organic electronics as an intermediate for synthesizing conjugated materials in organic semiconductors. Commonly applied in the development of organic light-emitting diodes (OLEDs) and organic photovoltaics (OPVs) due to its electron-deficient structure, which enhances charge transport properties. Also serves as a building block in the preparation of fluorescent dyes and sensors, particularly for detecting metal ions in solution. Its rigid fused-ring framework improves thermal stability and film-forming ability in device fabrication.