• CAS:1234-27-1

  4,4'-(carbonyldiimino)bis-benzoic acid

• CAS:2449-35-6

  Benzoic acid,4,4'-sulfonylbis-

• CAS:345221-90-1

  4-​(4-​carboxyphenoxymethyl)​benzoic acid

• CAS:17003-01-9

  4,4'-(Dimethylsilylene)Bis-Benzoic Acid

• CAS:47593-50-0

  4,4'-[1,4-phenylenebis(methyleneoxy)]bis-Benzoic acid

• CAS:1202253-60-8

  4,4'-((1E,1'E)-(2,5-dimethoxy-1,4-phenylene)bis(ethene-2,1-diyl))dibenzoic acid

• CAS:1258419-74-7

  Benzoic acid, 4,​4'-​(1,​2-​phenylenedi-​2,​1-​ethynediyl)​bis-

• CAS:167777-26-6

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

• CAS:214622-81-8

  2,7-Pyrenedicarboxylic acid

• CAS:1184934-21-1

  Benzoic acid, 4,4'-[2,8-bis(1,1-dimethylethyl)-4,10-dihydropyreno[4,5-d:9,10-d']diimidazole-5,11-diyl]bis-