[4,4'-Bipyridine]-2,2',6,6'-tetracarboxylic acid
1,3-Bis[4-(3-aMinophenoxy)benzoyl] benzene
1,3,5-Tris(4-aminophenyl)benzene
Biphenyl-3,3',5,5'-tetracarboxylic acid
(E)-5,5'-(diazene-1,2-diyl)diisophthalic acid
5,5'-(anthracene-9,10-diyl)diisophthalicacid
1,3,6,8-Tetra(4-carboxylphenyl) pyrene
[1,1':4',1''-terphenyl]-3,3'',5,5''-tetracarboxylicacid
1,2,4,5-Tetrakis(4-carboxyphenyl)benzene
[1,1'-biphenyl]-3,4',5-tricarboxylicacid 5-(4-carboxyphenyl)benzene-1,3-dicarboxylicacid