• CAS:861406-83-9

  [3,3'-Bipyridine]-6,6'-dicarboxylicacid

• CAS:18646-81-6

  thieno[3,2-b]thiophene-2,4-dicarboxylic acid

• CAS:1155-51-7

  Benzoic acid,4,4'-dithiobis-

• CAS:1190438-53-9

  Benzoic acid, 4,​4'-​[(2,​5-​dimethoxy-​1,​4-​phenylene)​di-​2,​1-​ethynediyl]​bis-

• CAS:142168-26-1

  Benzoic acid, 4,​4'-​(10,​20-​diphenyl-​21H,​23H-​porphine-​5,​15-​diyl)​bis-

• CAS:1226259-70-6

• CAS:2727915-40-2

• CAS:220438-80-2

  (4-Carboxy-3-ethoxy)phenyl Acetic Acid

• CAS:74302-25-3

  Benzoic acid,2-(3-carboxyphenoxy)-

• CAS:690272-91-4