[1,1'-Biphenyl]-4,4'-diamine,N,N'-di-2-naphthalenyl-N,N'-diphenyl- (9CI);N,N'-Bis(3-naphthalen-2-yl)-N,N'-bis(phenyl)benzidine;N,N'-Di(naphthalen-2-yl)-N,N'-diphenylbenzidine;
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