Description

4,4′-Diamino-[1,1′-biphenyl]-2,2′-dicarboxylic acid (CAS No. 17557-76-5) is a high-purity biphenyl derivative with the molecular formula C₁₄H₁₂N₂O₄. This compound features two amino and two carboxylic acid functional groups, making it a versatile building block for organic synthesis, coordination chemistry, and material science applications. Its rigid biphenyl backbone and bifunctional nature enable its use in the design of metal-organic frameworks (MOFs), covalent organic frameworks (COFs), and advanced polymers. Ideal for researchers in pharmaceuticals, catalysis, and supramolecular chemistry, this product is supplied with comprehensive analytical data (including ¹H NMR, HPLC, and MS) to ensure quality and reproducibility. Store in a cool, dry place under inert conditions to maintain stability.

Properties

• CAS Number: 17557-76-5
• Complexity: 351
• IUPAC Name: 5-amino-2-(4-amino-2-carboxy-phenyl)benzoic acid
• InChI: InChI=1S/C14H12N2O4/c15-7-1-3-9(11(5-7)13(17)18)10-4-2-8(16)6-12(10)14(19)20/h1-6H,15-16H2,(H,17,18)(H,19,20)
• InChI Key: MKHDOBRSMHTMOK-UHFFFAOYSA-N
• Exact Mass: 272.07970687
• Molecular Formula: C14H12N2O4
• Molecular Weight: 272.26
• SMILES: C1=CC(=C(C=C1N)C(=O)O)C2=C(C=C(C=C2)N)C(=O)O
• Topological: 127
• Monoisotopic Mass: 272.07970687
• Synonyms: 17557-76-5, 4,4′-Diamino-[1,1′-biphenyl]-2,2′-dicarboxylic acid, 4,4′-DIAMINOBIPHENYL-2,2′-DICARBOXYLIC ACID, 5-amino-2-(4-amino-2-carboxyphenyl)benzoic acid, [1,1′-Biphenyl]-2,2′-dicarboxylic acid, 4,4′-diamino-, MFCD00156997, 4,4′-Diamino-[1,1′-biphenyl]-2,2′- dicarboxylic acid, YSZC106, SCHEMBL713768, benzidine-2,2′ -dicarboxylic acid, AKOS022181839, DS-15345, SY115929, CS-0110592, F21359, 4,4′-Diamino-[1,1′-biphenyl]-2,2′-dicarboxylicacid, 4,4 inverted exclamation mark -Diamino-[1,1 inverted exclamation mark -biphenyl]-2,2 inverted exclamation mark -dicarboxylic acid, 4,4 inverted exclamation mark -Diaminobiphenyl-2,2 inverted exclamation mark -dicarboxylic Acid

Application

4,4′-Diamino-[1,1′-biphenyl]-2,2′-dicarboxylic acid serves as a key precursor in the synthesis of functionalized biphenyl-based materials, including luminescent MOFs and proton-conductive polymers. Its bifunctional groups facilitate chelation with transition metals for catalytic applications, such as asymmetric hydrogenation. Researchers also exploit its structural rigidity to develop high-performance polyamides and polyimides for advanced coatings and engineering plastics.

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