5',5''-bis(4-carboxyphenyl)-4'',6'-diethoxy-[1,1':3',1'':3'',1'''-quaterphenyl]-4,4'''-dicarboxylic acid

5',5''-bis(4-carboxyphenyl)-4'',6'-diethoxy-[1,1':3',1'':3'',1'''-quaterphenyl]-4,4'''-dicarboxylic acid · CAS 1931172-16-5