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1,4-Benzenedicarboxaldehyde, 2,3-dihydroxy-, polymer with 4,4′,4′′-(1,3,5-triazine-2,4,6-triyl)tris[benzenamine]
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1,3,5-Benzenetricarboxaldehyde, 2,4,6-trihydroxy-, polymer with 2,7-diamino-4,5,9,10-pyrenetetrone
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![2,2'-diamino-[1,1'-Biphenyl]-4,4'-dicarboxylic acid](http://struc.chem960.com/strucimg/41800/tronkqoz4bjbujemlwogfgee.png)
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