4-Amino-1,3-benzenedisulfonic acid

苯胺-2,4-二磺酸

Also known as: Aniline-2,4-disulfonic acid, 4-Aminobenzene-1,3-disulfonic acid, 4-Aminobenzene-1,3-disulphonic acid, Aniline-2,4-disulphonic acid, EINECS 205-299-3, MFCD00035903

4-Amino-1,3-benzenedisulfonic acid (CAS 137-51-9) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C6H7NO6S2 and a molecular weight of 253.25300 g/mol. It is also known as Aniline-2,4-disulfonic acid, 4-Aminobenzene-1,3-disulfonic acid and 4-Aminobenzene-1,3-disulphonic acid. Key property: a density of 1.844 g/cm3. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
137-51-9
Jingsj CID
J-23923-9
Molecular Formula
C6H7NO6S2
Chinese Name
苯胺-2,4-二磺酸
Molecular Weight
253.25300 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Density1.844 g/cm3

Frequently Asked Questions

What is the CAS number of 4-Amino-1,3-benzenedisulfonic acid?

The CAS number of 4-Amino-1,3-benzenedisulfonic acid is 137-51-9.

What are the molecular formula and molecular weight of 4-Amino-1,3-benzenedisulfonic acid?

4-Amino-1,3-benzenedisulfonic acid has molecular formula C6H7NO6S2 and molecular weight 253.25300 g/mol.

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

Last updated:

How to cite: Jingsj. "4-Amino-1,3-benzenedisulfonic acid (CAS 137-51-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-23923-9 (accessed 2026-10-22).

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