Used in organic light-emitting diodes (OLEDs) as a key building block for hole-transport materials due to its excellent thermal stability and electron-donating properties. Commonly employed in the development of blue and white phosphorescent OLEDs to enhance device efficiency and lifetime. Also utilized in perovskite solar cells as a component of hole-transport layers, improving charge extraction and device performance. Serves as an intermediate in the synthesis of pharmaceuticals and dyes, particularly in compounds requiring rigid aromatic structures. Its derivative forms are explored in optoelectronic devices and as hosts for emissive dopants in display technologies.