Used as a key intermediate in organic semiconductor materials, particularly in the development of blue-emitting layers for OLED (organic light-emitting diode) devices. Its rigid aromatic structure and bromine functionalization allow for efficient cross-coupling reactions, enabling the synthesis of conjugated polymers and small molecules with tunable electronic properties. It is also employed in the preparation of host materials for phosphorescent OLEDs, where it helps improve device efficiency and thermal stability. Due to its high glass transition temperature and good film-forming ability, it supports stable performance in thin-film applications.