N,N,N',N'-四***-1,1'-***-4,4'-二胺(TPB)N,N,N',N'-Tetraphenyl[1,1'-biphenyl]-4,4'-diamineCAS：15546-43-7M.F.:C36H28N2Appearance:WhitepowderPurity：98%M.P.:230-231℃Packing:25Kg/drum)