2-Amino-4,5-dichlorobenzenesulfonic acid

3,4-二氯苯胺-6-磺酸

Also known as: 3,4-Dichloroaniline-6-sulfonic acid, 4,5-Dichloroaniline-2-sulfonic acid, 4,5-Dichloroorthanilic acid, 6-Amino-3,4-dichlorobenzenesulfonic acid, Benzenesulfonic acid, 2-amino-4,5-dichloro-, 2-amino-4,5-dichlorobenzenesulphonic acid, MFCD00036096, NSC 37399

2-Amino-4,5-dichlorobenzenesulfonic acid (CAS 6331-96-0) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C6H5Cl2NO3S and a molecular weight of 242.080 g/mol. It is also known as 3,4-Dichloroaniline-6-sulfonic acid, 4,5-Dichloroaniline-2-sulfonic acid and 4,5-Dichloroorthanilic acid. Key properties include a melting point of 8-10 °C(lit.), a boiling point of 270 °C(lit.), a density of 1.7±0.1 g/cm3 and a flash point of 270 °F. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
6331-96-0
Jingsj CID
J-1323372-1
Molecular Formula
C6H5Cl2NO3S
Chinese Name
3,4-二氯苯胺-6-磺酸
Molecular Weight
242.080 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point8-10 °C(lit.)
Boiling Point270 °C(lit.)
Density1.7±0.1 g/cm3
Flash Point270 °F

Frequently Asked Questions

What is the CAS number of 2-Amino-4,5-dichlorobenzenesulfonic acid?

The CAS number of 2-Amino-4,5-dichlorobenzenesulfonic acid is 6331-96-0.

What are the molecular formula and molecular weight of 2-Amino-4,5-dichlorobenzenesulfonic acid?

2-Amino-4,5-dichlorobenzenesulfonic acid has molecular formula C6H5Cl2NO3S and molecular weight 242.080 g/mol.

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

Last updated:

How to cite: Jingsj. "2-Amino-4,5-dichlorobenzenesulfonic acid (CAS 6331-96-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1323372-1 (accessed 2026-10-25).

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