4,4',4'',4'''-(pyrene-1,3,6,8-tetrayl)tetrakis(2-hydroxybenzoic acid)
4,4',4",4"'-(pyrene-1,3,6,8-tetrayl)tetrakis(2-aminobenzoic acid)
[1,1'-Biphenyl]-4-carboxylic acid, 4',4''',4''''',4'''''''-(1,2-ethenediylidene)tetrakis[3-fluoro-
Benzoic acid, 4,4',4'',4'''-tricyclo[3.3.1.13,7]decane-1,3,5,7-tetrayltetrakis- (9CI)
5'-(4,5-bis(4-carboxyphenyl)-1H-imidazol-2-yl)-[1,1':3',1''-terphenyl]-4,4''-dicarboxylic acid