Used as a key building block in the synthesis of high-performance polymers, especially in the production of fluorinated polyimides and polyamides. Its trifluoromethyl groups enhance thermal stability, chemical resistance, and solubility in organic solvents, making the resulting polymers suitable for advanced electronic devices, optical materials, and aerospace applications. Also employed in the development of liquid crystal polymers and as a ligand or modifier in catalytic systems due to its rigid biphenyl structure and electron-withdrawing substituents.