Used as an intermediate in organic synthesis, particularly in cross-coupling reactions such as Suzuki and Ullmann reactions, to construct complex aromatic systems for optoelectronic materials. Commonly applied in the development of organic semiconductors, OLEDs (organic light-emitting diodes), and pharmaceuticals due to its ability to form extended π-conjugated structures. Its dual halogen functionality allows sequential and selective functionalization, making it valuable in fine chemical and material science research.