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4-(4'-Aminophenylazo)phenylarsonic acid

4-(4'-氨基苯基偶氮)苯胂酸

Also known as: 4-(4-Aminophenylazo)benzenearsonic acid, 4-Aminoazobenzene-4'-arsonic acid, 4-(p-Aminophenylazo)phenylarsonic acid, p-((p-Aminophenyl)azo)benzenearsonic acid, Arsonic acid, [4-[(4-aminophenyl)azo]phenyl]- (9CI), NSC 68047, 4-(4-aminophenylazo)phenylarsonic acid

4-(4'-Aminophenylazo)phenylarsonic acid (CAS 6966-64-9) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C12H12AsN3O3 and a molecular weight of 321.16400 g/mol. It is also known as 4-(4-Aminophenylazo)benzenearsonic acid, 4-Aminoazobenzene-4'-arsonic acid and 4-(p-Aminophenylazo)phenylarsonic acid. Key properties include a melting point of 360ºC, a boiling point of 623.6ºC at 760mmHg and a flash point of 331ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
6966-64-9
Jingsj CID
J-28158-4
Molecular Formula
C12H12AsN3O3
Chinese Name
4-(4'-氨基苯基偶氮)苯胂酸
Molecular Weight
321.16400 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point360ºC
Boiling Point623.6ºC at 760mmHg
Flash Point331ºC

Frequently Asked Questions

What is the CAS number of 4-(4'-Aminophenylazo)phenylarsonic acid?

The CAS number of 4-(4'-Aminophenylazo)phenylarsonic acid is 6966-64-9.

What are the molecular formula and molecular weight of 4-(4'-Aminophenylazo)phenylarsonic acid?

4-(4'-Aminophenylazo)phenylarsonic acid has molecular formula C12H12AsN3O3 and molecular weight 321.16400 g/mol.

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

Last updated:

How to cite: Jingsj. "4-(4'-Aminophenylazo)phenylarsonic acid (CAS 6966-64-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-28158-4 (accessed 2026-10-25).

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