Used primarily in the development of organic light-emitting diodes (OLEDs) due to its excellent electron-transporting properties and high thermal stability. It serves as a key component in the synthesis of advanced materials for optoelectronic devices, enhancing their efficiency and longevity. Additionally, it is utilized in the production of photoresists for semiconductor manufacturing, where its structural rigidity contributes to improved patterning accuracy. Its unique spiro structure also makes it a valuable building block in the creation of high-performance polymers and coatings, offering enhanced mechanical and chemical resistance.