Used as a key intermediate in Suzuki-Miyaura cross-coupling reactions for the synthesis of conjugated organic semiconductors. It enables the formation of carbon-carbon bonds in the preparation of advanced materials for organic light-emitting diodes (OLEDs), organic photovoltaics (OPVs), and field-effect transistors (OFETs). Its boronate ester groups provide high stability and reactivity, making it ideal for constructing fluorene-based polymers and small molecules with tailored electronic properties. Commonly employed in research and industrial settings for developing efficient and stable optoelectronic devices.