Used as an intermediate in the synthesis of organic semiconductors and optoelectronic materials. Its brominated carbazole core enables further functionalization through cross-coupling reactions, making it valuable in the development of hole-transport materials for OLEDs and perovskite solar cells. Also employed in the preparation of fluorescent dyes and phosphorescent emitters due to the rigid, planar structure that supports efficient light emission. Commonly utilized in research settings for fabricating organic light-emitting diodes (OLEDs) and as a building block for high-performance organic electronic devices.