Used as a key intermediate in Suzuki-Miyaura cross-coupling reactions for the synthesis of organic semiconductors and conjugated polymers. Its boronate ester group enables efficient carbon-carbon bond formation, making it valuable in the development of materials for organic light-emitting diodes (OLEDs), organic photovoltaics (OPVs), and field-effect transistors (OFETs). The fluorene and biphenyl moieties contribute to high thermal stability and favorable charge transport properties, enhancing device performance. Commonly employed in research and industrial settings for fabricating advanced optoelectronic devices.