4-Aminodiphenylamine-2-sulfonic acid

4-氨基二苯胺-2-磺酸

Also known as: 5-amino-2-(phenylamino)benzenesulfonic acid, 4-Amino-2-sulfodiphenylamine, 6-Anilinometanilic acid, N-Phenyl-p-phenylenediamine-2-sulfonic acid, 4-Aminodiphenyamine-2-sulfonic acid, 5-Amino-2-anilinobenzenesulfonic acid, Metanilic acid, 6-anilino-

4-Aminodiphenylamine-2-sulfonic acid (CAS 91-30-5) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C12H12N2O3S and a molecular weight of 264.300 g/mol. It is also known as 5-amino-2-(phenylamino)benzenesulfonic acid, 4-Amino-2-sulfodiphenylamine and 6-Anilinometanilic acid. Key property: a density of 1.5±0.1 g/cm3. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
91-30-5
Jingsj CID
J-14530-3
Molecular Formula
C12H12N2O3S
Chinese Name
4-氨基二苯胺-2-磺酸
Molecular Weight
264.300 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Density1.5±0.1 g/cm3

Frequently Asked Questions

What is the CAS number of 4-Aminodiphenylamine-2-sulfonic acid?

The CAS number of 4-Aminodiphenylamine-2-sulfonic acid is 91-30-5.

What are the molecular formula and molecular weight of 4-Aminodiphenylamine-2-sulfonic acid?

4-Aminodiphenylamine-2-sulfonic acid has molecular formula C12H12N2O3S and molecular weight 264.300 g/mol.

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

Last updated:

How to cite: Jingsj. "4-Aminodiphenylamine-2-sulfonic acid (CAS 91-30-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-14530-3 (accessed 2026-10-23).

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