Bis(4-biphenylyl)amine, chemical formula is C24H19N, CAS number 102113-98-4, molecular weight is 321.42, a functional intermediate of aromatic amine photoelectric material, pharmaceutical intermediate. At present, it is widely used in the cover layer, the light-emitting layer body material, the transmission layer material, and the barrier layer material of the OLED. White powder, conventional purity ≥99.50%. Shangsai Optoelectronics can stabilize the product quality to 99.90% (HPLC) through a series of synthetic methods, controllable ion content, global supply of materials, inert atmosphere, and save from light.