• CAS:175202-55-8

  3,4-Dimethylthieno(2,3-b)thiophene-2,5-dicarboxylic acid

• CAS:502764-53-6

  DTT-2,6-dicarboxylic acid

• CAS:4282-29-5

  3,4-Thiophenedicarboxylic acid

• CAS:3387-26-6

  3,4-Furandicarboxylic acid

• CAS:65697-90-7

  4,4'-(1H-1,2,4-triazole-3,5-diyl)bis-Benzoic acid

• CAS:923057-85-6

  4-amino-3,5-bis(3-carboxyphenyl)-4H-1,2,4-triazole

• CAS:1815596-32-7

  4,4'-(4-amino-4H-1,2,4-triazole-3,5-diyl)dibenzoic acid

• CAS:3112-31-0

  1H-Pyrazole-3,5-dicarboxylic acid

• CAS:2413962-77-1

  4,4'-(1H,1'H-[2,2'-biimidazole]-1,1'-diyl)dibenzoic acid

• CAS:1414629-40-5

  1,​3-​bis(4-​carboxyphenyl)​imidazolium