Used as a key intermediate in organic semiconductors, particularly in the production of blue-emitting materials for OLEDs (organic light-emitting diodes). Its rigid, twisted structure helps prevent aggregation and excimer formation, improving color purity and device efficiency. Commonly employed in host materials for phosphorescent OLEDs due to its high triplet energy and good hole-transport properties. Also utilized in the synthesis of polymers and small molecules for optoelectronic devices such as organic photovoltaics and field-effect transistors.