• CAS:1261898-79-6

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

• CAS:2089-87-4

  1,6-naphthalenedicarboxylic acid

• CAS:2226204-96-0

• CAS:100-31-2

  4,4'-Stilbenedicarboxylic acid

• CAS:38303-39-8

  Azulene-1,3-dicarboxylic acid

• CAS:1103906-42-8

  N,N'-Di-(4-benzoic acid)-1,2,6,7-tetrachloroperylene-3,4,9,10-tetracarboxylic acid diimide

• CAS:22980-67-2

  9H-Fluorene-2,7-dicarboxylic acid

• CAS:96217-57-1

• CAS:1447761-33-2

• CAS:14900-61-9

  4-{[(4-carboxybenzyl)amino]methyl}benzoic acid