Used in organic electronics, particularly in the production of organic light-emitting diodes (OLEDs), due to its excellent hole-transport properties and thermal stability. It serves as a building block for host materials in blue and green phosphorescent OLEDs, enhancing device efficiency and lifetime. Also employed in the synthesis of dyes and fluorescent probes for sensing applications. Its rigid structure supports high triplet energy levels, making it valuable in photovoltaic devices and as a component in thermally activated delayed fluorescence (TADF) emitters.