Widely used in organic light-emitting diodes (OLEDs), this compound serves as a host material in blue phosphorescent and thermally activated delayed fluorescence (TADF) devices. Its high triplet energy level enables efficient energy transfer to blue emitters, improving device efficiency and stability. It is also employed in multilayer OLED structures due to its good film-forming properties and thermal stability. In addition, its electron-donating carbazolyl groups enhance hole transport, making it suitable for use in hole-transport layers or as a component in emissive layers. The methyl substituents improve solubility and reduce molecular aggregation, helping to maintain color purity and prevent concentration quenching.