Used as an intermediate in organic synthesis, particularly in cross-coupling reactions such as Suzuki and Stille couplings, to construct complex aromatic and conjugated systems. Its halogen substituents allow selective functionalization, making it valuable in the development of organic electronic materials, including semiconductors and light-emitting compounds. Commonly employed in the synthesis of advanced materials for OLEDs and organic photovoltaics due to the stability and planarity of the fluorene backbone.