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N,N'-Bis(naphthalen-1-Yl)-N,N'-bis(phenyl)benzidine (NPB) CAS 123847-85-8 99%
1,1-Bis[4-[N,N’-Di(P-tolyl)amino]phenyl]cyclohexane (TAPC) CAS 58473-78-2 99%
N,N'-di(3-methylphenYl)-N,N'-Di(phenyl)benzidine (TPD) CAS 65181-78-4 99%