5',5'''-bis(4-carboxyphenyl)-5''-(4,4''-dicarboxy-[1,1':3',1''-terphenyl]-5'-yl)-[1,1':3',1'':3'',1''':3''',1''''-quinquephenyl]-4,4''''-dicarboxylic acid

5',5'''-bis(4-carboxyphenyl)-5''-(4,4''-dicarboxy-[1,1':3',1''-terphenyl]-5'-yl)-[1,1':3',1'':3'',1''':3''',1''''-quinquephenyl]-4,4''''-dicarboxylic acid