Used as an intermediate in organic semiconductor synthesis, particularly in the production of conjugated polymers for optoelectronic devices. It serves as a building block in the fabrication of organic light-emitting diodes (OLEDs) and organic field-effect transistors (OFETs) due to its stable fluorene backbone and ability to facilitate electron transport. The bromine sites allow for further functionalization via cross-coupling reactions, enabling precise control over electronic properties. Its alkyl side chains enhance solubility in organic solvents, improving processability in thin-film device manufacturing.