Used as an intermediate in organic synthesis, particularly in the preparation of functionalized fluorenes for optoelectronic materials. Commonly employed in cross-coupling reactions such as Suzuki and Heck reactions to build conjugated systems for organic light-emitting diodes (OLEDs) and organic photovoltaics (OPVs). Its bromo group facilitates metal-catalyzed coupling, while the 9,9-dimethyl substitution enhances stability and influences electronic properties. Also utilized in the synthesis of polymers and small molecules for semiconductor applications.