Used as a key intermediate in the synthesis of advanced organic semiconductors, particularly in the development of high-performance materials for organic light-emitting diodes (OLEDs) and organic photovoltaics (OPVs). Its spirocyclic structure provides thermal stability and prevents close packing, which helps maintain high luminescence efficiency. The presence of bromo and chloro functional groups allows for selective cross-coupling reactions, enabling precise molecular engineering of conjugated systems. It is also employed in the preparation of host materials for blue phosphorescent OLEDs, where its rigid framework contributes to a high triplet energy level and good charge transport properties.