• CAS:249296-22-8

  9,9-diethyl-9H-fluorene-2,7-dicarboxylic acid

• CAS:1693726-92-9

• CAS:732939-58-1

  6-sulfonaphthalene-1,9-dicarboxylicacid

• CAS:156421-74-8

  3-(5-Carboxy-2-furanyl)-2-propenoic acid; (E)-form

• CAS:5880-06-8

  Benzo[lmn][3,8]phenanthroline-2,7-diacetic acid, 1,3,6,8-tetrahydro-1,3,6,8-tetraoxo-

• CAS:92383-58-9

  AKOS BB-4929

• CAS:71367-28-7

  9,10-Anthracenedipropanoic acid

• CAS:41259-89-6

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

• CAS:1261898-79-6

  2-​Pyridinecarboxylic acid, 5-​(4-​carboxyphenyl)​-

• CAS:2089-87-4

  1,6-naphthalenedicarboxylic acid