Used primarily in organic electronics, this compound serves as a key intermediate in the synthesis of advanced materials for optoelectronic devices. Its rigid spirobifluorene core with bromine functionalization enables efficient charge transport and enhances thermal stability in OLEDs (organic light-emitting diodes) and perovskite solar cells. The bromine sites allow for further cross-coupling reactions, making it valuable in constructing conjugated polymers and small-molecule semiconductors. It is also employed in the development of host materials for blue phosphorescent OLEDs due to its high triplet energy and suitable energy level alignment.