4',4''',4''''',4'''''''-(ethene-1,1,2,2-tetrayl)tetrakis(2-methyl-[1,1'-biphenyl]-4-carboxylic acid)
4',4''',4''''',4'''''''-(ethene-1,1,2,2-tetrayl)tetrakis(2-fluoro-[1,1'-biphenyl]-4-carboxylic acid)
[1,1'-Biphenyl]-4-carboxylic acid, 4',4''',4''''',4'''''''-(1,2-ethenediylidene)tetrakis[3-methyl-
2',5'-bis(2-(2-methoxyethoxy)ethoxy)-[1,1':4',1''-terphenyl]-3,3'',5,5''-tetracarboxylic acid
4,4′,4′′,4′′′-(9,10-Anthracenediylidenedimethanetetrayl)tetrakis[benzoic acid]
5-(4,5-bis(4-carboxyphenyl)-1H-imidazol-2-yl)isophthalic acid