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???(??):: BIS(4-DIMETHYLAMINOPHENYL)ACETYLENE;4,4'-(ethyne-1,2-diyl)bis(N,N-diMethylaniline);Benzenamine, 4,4'-(1,2-ethynediyl)bis[N,N-dimethyl-

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4,4'-BIS(N,N-DIPHENYLAMINO)TOLANE BIS(4-DIMETHYLAMINOPHENYL)ACETYLENE 4'-DIMETHYLAMINOPHENYL ACETYLENE 4-[2-(4-AMINOPHENYL)ETHYNYL]ANILINE