1,4-Benzenediamine, N,N'-mixed Ph and tolyl derivs. 1,4-Benzenediamine, N,N'-mixed phenyl and tolyl derivs. 68953-84-4 70892-24-9 EINECS 273-227-8 Hydroquinone, o-toluidine, aniline condensate N,N'-Diaryl-p-phenylene diamine N,N'-Diphenyl-p-phenylenediamine, methylated