(1,1'-Biphenyl)-4,4'-diamine, 2,2'-dimethyl- (9CI) 2,2'-Dimethyl(1,1'-biphenyl)-4,4'-diamine 2,2'-Dimethyl-4,4'-biphenyldiamine 2,2'-Dimethylbenzidine 2,2'-Tolidine 4,4'-Diamino-2,2'-dimethylbiphenyl 84-67-3 Benzidine, 2,2'-dimethyl- (8CI) EINECS 201-551-1 NSC 1989 m-Tolidine