6-chloro-2-aminophenol-4-sulfonic acid

3-氨基-5-氯-4-羟基苯磺酸

Also known as: 3-amino-5-chloro-4-hydroxybenzenesulfonic acid, 3-amino-5-chloro-4-hydroxybenzenesulphonic acid, 5-chloro-4-hydroxymetanilic acid, 5-chloro-4-hydroxy-metanilic acid, 6-chloro-2-aminophenol-4-sulphonic acid, 6-Chloro-4-sulfo-2-aminophenol, 1-hydroxy-2-amino-6-chlorobenzene-4-sulfonic acid, 6-chloro-2-amino-1-hydroxybenzene-4-sulphonic acid, 3-amino-5-chloro-4-hydroxy-benzenesulfonic acid, 3-Amino-5-chlor-4-hydroxy-benzolsulfonsaeure, 3-Amino-5-chlor-4-hydroxybenzolsulfonsure, Metanilic acid, 5-chloro-4-hydroxy-, Kyselina 2-chlor-6-aminofenol-4-sulfonova, EINECS 227-482-7

6-chloro-2-aminophenol-4-sulfonic acid (CAS 5857-94-3) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C6H6ClNO4S and a molecular weight of 223.63400 g/mol. It is also known as 3-amino-5-chloro-4-hydroxybenzenesulfonic acid, 3-amino-5-chloro-4-hydroxybenzenesulphonic acid and 5-chloro-4-hydroxymetanilic acid. Key property: a density of 1.26 g/cm3. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
5857-94-3
Jingsj CID
J-1340333-7
Molecular Formula
C6H6ClNO4S
Chinese Name
3-氨基-5-氯-4-羟基苯磺酸
Molecular Weight
223.63400 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Density1.26 g/cm3

Frequently Asked Questions

What is the CAS number of 6-chloro-2-aminophenol-4-sulfonic acid?

The CAS number of 6-chloro-2-aminophenol-4-sulfonic acid is 5857-94-3.

What are the molecular formula and molecular weight of 6-chloro-2-aminophenol-4-sulfonic acid?

6-chloro-2-aminophenol-4-sulfonic acid has molecular formula C6H6ClNO4S and molecular weight 223.63400 g/mol.

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

Last updated:

How to cite: Jingsj. "6-chloro-2-aminophenol-4-sulfonic acid (CAS 5857-94-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1340333-7 (accessed 2026-10-25).

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