2'-Fluoro-[1,1':3',1''-terphenyl]-4,4'',5'-tricarboxylic acid
5,5',5''-(Benzene-1,3,5-triyl)tris(thiophene-2-carboxylic acid)
2-Amino-4-[4,6-bis(4-carboxyphenyl)-1,3,5-triazin-2-yl]benzoic acid
1,1'-Biphenyl]-4-carboxylic acid, 4'-[3,6-bis(4-carboxyphenyl)-9H-carbazol-9-yl]-
[1,1':3',1''-Terphenyl]-4,4''-dicarboxylic acid, 5'-(4-carboxy-3-nitrophenyl)-3,3''-dinitro-