Used as a key intermediate in organic semiconductor materials, particularly in the production of blue-emitting hosts for OLED (organic light-emitting diode) devices. Its rigid, twisted molecular structure helps suppress aggregation and excimer formation, enhancing emission efficiency. Commonly employed in phosphorescent and thermally activated delayed fluorescence (TADF) OLEDs to improve device lifetime and color purity. Also utilized in electron-transport layers due to its favorable triplet energy level and thermal stability.