Used as a key intermediate in organic semiconductor materials, particularly in the development of blue-emitting hosts for OLED (organic light-emitting diode) devices. Its rigid, twisted structure helps suppress aggregation and excimer formation, enhancing device efficiency and color purity. Commonly employed in phosphorescent and TADF (thermally activated delayed fluorescence) OLEDs due to its high triplet energy and good hole-transport properties. Also utilized in the synthesis of advanced host materials for display and lighting applications.