(1,1'-Biphenyl)-4,4'-diamine, 3,3',5,5'-tetramethyl- 3,3',5,5'-TETRAMETHYLBENZIDINE 3,3',5,5'-Tetramethyl(1,1'-biphenyl)-4,4'-diamine 3,3',5,5'-Tetramethyl-(1,1'-biphenyl)-4,4'-diamine 3,5,3',5'-Tetramethylbenzidine 54827-17-7 BRN 2808541 CCRIS 4727 EINECS 259-364-6 HSDB 4331