Benzidine,3,3'-dimethyl- (8CI);3,3'-Dimethyl-4,4'-biphenyldiamine;3,3'-Dimethyl-4,4'-diaminobiphenyl;3,3'-Dimethylbenzidine;3,3'-Tolidine;4,4'-Diamino-3,3'-dimethyl-1,1'-biphenyl;4,4'-Diamino-3,3'-dimethylbiphenyl;4'-Amino-3,3'-dimethyl[1,1'-biphenyl]-4-ylamine;C.I. 37230;C.I. Azoic DiazoComponent 113;Fast Dark Blue Base R;o,o'-Tolidine;[1,1'-Biphenyl]-4,4'-diamine,3,3'-dimethyl-;o-Tolidine;