InChI=1/C38H32N2/c1-29-13-21-35(22-14-29)39(33-9-5-3-6-10-33)37-25-17-31(18-26-37)32-19-27-38(28-20-32)40(34-11-7-4-8-12-34)36-23-15-30(2)16-24-36/h3-28H,1-2H N,N'-bis(4-methylphenyl)-N,N'-diphenylbiphenyl-4,4'-diamine [1,1'-biphenyl]-4,4'-diamine, N,N'-bis(4-methylphenyl)-N,N'-diphenyl-