2,6-DICARBOXYNAPHTHALENE2,6-萘二羧酸2,6-Naphthalenedicarboxylic acidNaphthalene-2,6-dicarboxylic acid 99%Naphthalene-2,6-dicarboxylic acid2,6-Naphthalenedicarboxylic Acid2,6-Naphthalic AcidNSC 96410Naphthalene-2,6-dicarboxylic acid萘-2,6-二甲酸2,6-DICARBOXYNAPHTHALENE2,6-naphthalenedicarboxylic acidnaphthalene-2,6-dicarboxylic acid2,6-naphthalic acid