Used primarily in organic synthesis as a key intermediate in Suzuki-Miyaura cross-coupling reactions, enabling the formation of carbon-carbon bonds in the development of conjugated organic materials. Commonly employed in the synthesis of organic semiconductors, light-emitting diodes (OLEDs), and fluorescent dyes due to its stable boronate ester group and extended π-conjugated fluorene backbone. Its hexyl side chains enhance solubility in organic solvents, making it suitable for solution-processed electronic devices. Also utilized in the preparation of polymers and small molecules for optoelectronic applications.