Used as a key intermediate in Suzuki-Miyaura cross-coupling reactions for the synthesis of conjugated organic materials. It enables the formation of carbon-carbon bonds in the development of organic semiconductors, particularly in constructing fluorene-based polymers and small molecules for optoelectronic applications such as organic light-emitting diodes (OLEDs), organic photovoltaics (OPVs), and field-effect transistors (OFETs). The boronate ester group facilitates efficient coupling with aryl halides under palladium catalysis, allowing for modular design of π-conjugated systems with tunable electronic properties. Its hexyl side chains enhance solubility in common organic solvents, supporting solution-processable device fabrication.