4,4'-diaminobiphenyl-2,2'-dicarboxylic acid

Also known as: 4,4'-Diamino-[1,1'-biphenyl]-2,2'-dicarboxylic acid, 4,4'-Diamino-2,2'-biphenyldicarboxylic acid, 2,2'-Dicarboxybenzidine, 2,2'-Dicarboxylic acid-4,4'-Diaminobiphenyl, 4,4'-Diamino-2,2'-diphenic acid, 4,4'-diamino-diphenic acid, 4,4'-Diamino-diphensaeure, Benzidin-dicarbonsaeure-(2.2'), DK1348, 5-amino-2-(4-amino-2-carboxyphenyl)benzoic acid

4,4'-diaminobiphenyl-2,2'-dicarboxylic acid (CAS 17557-76-5) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C14H12N2O4 and a molecular weight of 272.256 g/mol. Key properties include a boiling point of 515.1±50.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 265.3±30.1 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 17557-76-5
Jingsj CID: J-1516515-8
Molecular Formula: C₁₄H₁₂N₂O₄
Molecular Weight: 272.256 g/mol
Category: Organic Acids
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	515.1±50.0 °C at 760 mmHg
Density	1.5±0.1 g/cm3
Flash Point	265.3±30.1 °C
Exact Mass	272.079712
PSA	126.64000
LogP	-0.06
Vapor Pressure	0.0±1.4 mmHg at 25°C
Refractive Index	1.725
Storage Conditions	2-8°C

Customs & Trade Information

HS Code	2922499990
Summary	HS:2922499990 other amino-acids, other than those containing more than one kind of oxygen function, and their esters; salts thereof VAT:17.0% Tax rebate rate:9.0% Supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward) MFN tariff:6.5% General tariff:30.0%

Frequently Asked Questions

What is the CAS number of 4,4'-diaminobiphenyl-2,2'-dicarboxylic acid?

The CAS number of 4,4'-diaminobiphenyl-2,2'-dicarboxylic acid is 17557-76-5.

What are the molecular formula and molecular weight of 4,4'-diaminobiphenyl-2,2'-dicarboxylic acid?

4,4'-diaminobiphenyl-2,2'-dicarboxylic acid has molecular formula C14H12N2O4 and molecular weight 272.256 g/mol.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated: 8/21/2026

How to cite: Jingsj. "4,4'-diaminobiphenyl-2,2'-dicarboxylic acid (CAS 17557-76-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1516515-8 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.