Used primarily as an intermediate in the synthesis of organic semiconductors and optoelectronic materials. Its rigid fluorene backbone with chloro substituents makes it suitable for cross-coupling reactions in the production of conjugated polymers and small molecules for OLEDs and organic photovoltaics. The dimethyl groups enhance stability and influence electronic properties, improving performance in electronic devices. Also employed in research for developing novel organic light-emitting diodes and field-effect transistors due to its favorable charge transport characteristics.