3,3'-Azodibenzoic acid

偶氮苯-3,3'-二羧酸

Also known as: 3,3'-AZODIBENZOIC ACID, Azobenzene-3,3'-dicarboxylic Acid, Benzoic acid, 3,3'-(1,2-diazenediyl)bis-, 3,3'-(Diazene-1,2-diyl)dibenzoic acid, 3-(3-carboxyphenyl)azobenzoic acid, 3-[(3-carboxyphenyl)diazenyl]benzoic acid

3,3'-Azodibenzoic acid (CAS 621-18-1) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C14H10N2O4 and a molecular weight of 270.24000 g/mol. It is also known as 3,3'-AZODIBENZOIC ACID, Azobenzene-3,3'-dicarboxylic Acid and Benzoic acid, 3,3'-(1,2-diazenediyl)bis-. Key properties include a boiling point of 561.434ºC at 760 mmHg, a density of 1.354g/cm3 and a flash point of 293.345ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
621-18-1
Jingsj CID
J-886804-4
Molecular Formula
C14H10N2O4
Chinese Name
偶氮苯-3,3'-二羧酸
Molecular Weight
270.24000 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point561.434ºC at 760 mmHg
Density1.354g/cm3
Flash Point293.345ºC

Frequently Asked Questions

What is the CAS number of 3,3'-Azodibenzoic acid?

The CAS number of 3,3'-Azodibenzoic acid is 621-18-1.

What are the molecular formula and molecular weight of 3,3'-Azodibenzoic acid?

3,3'-Azodibenzoic acid has molecular formula C14H10N2O4 and molecular weight 270.24000 g/mol.

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

Last updated:

How to cite: Jingsj. "3,3'-Azodibenzoic acid (CAS 621-18-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-886804-4 (accessed 2026-10-27).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.