Used as an intermediate in the synthesis of organic semiconductors and optoelectronic materials. Commonly employed in the development of organic light-emitting diodes (OLEDs) and organic photovoltaics (OPVs) due to its ability to form stable, conjugated structures through cross-coupling reactions. Its bromine functionality allows for easy functionalization via palladium-catalyzed reactions, making it valuable in constructing complex carbazole-based architectures for efficient charge transport and emission properties. The hexyl substituent at the 9-position enhances solubility in organic solvents, facilitating solution-processing techniques such as printing or coating. Also utilized in the production of hole-transport materials and host compounds in blue-emitting OLED devices.