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1,4-Naphthalenedicarboxylic acid NAPHTHACENE 2,3-Naphthalenedicarboxylic acid 1,4-DIAMINONAPHTHALENE 2,3-diaminonaphthalene 2,6-NAPHTHALENEDICARBOXYLIC ACID NAPHTHALENE-2,3-DICARBOXALDEHYDE 1,4,5,8-Naphthalenetetracarboxylic dianhydride 9,10-Anthracenedicarboxylic acid N,N'-DIMETHYL-1,4,5,8-NAPHTHALENETETRACARBOXYLIC DIIMIDE