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6-Amino-4-hydroxy-2-naphthalenesulfonic acid monohydrate

6-氨基-4-羟基-2-萘磺酸一水合物

Also known as: 6-amino-4-hydroxynaphthalene-2-sulfonic acid hydrate, 6-amino-4-hydroxynaphthalene-2-sulfonic acid monohydrate, 6-Amino-4-hydroxynaphthalene-2-sulfonic acid hydrate

6-Amino-4-hydroxy-2-naphthalenesulfonic acid monohydrate (CAS 139123-65-2) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C10H11NO5S and a molecular weight of 257.26300 g/mol. It is also known as 6-amino-4-hydroxynaphthalene-2-sulfonic acid hydrate, 6-amino-4-hydroxynaphthalene-2-sulfonic acid monohydrate and 6-Amino-4-hydroxynaphthalene-2-sulfonic acid hydrate. Key properties include a boiling point of 701.4ºC at 760 mmHg and a flash point of 378ºC. GHS signal word: Danger. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
139123-65-2
Jingsj CID
J-1620984-0
Molecular Formula
C10H11NO5S
Chinese Name
6-氨基-4-羟基-2-萘磺酸一水合物
Molecular Weight
257.26300 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point701.4ºC at 760 mmHg
Flash Point378ºC

GHS Safety & Compliance

CorrosionSignal word: Danger

Frequently Asked Questions

What is the CAS number of 6-Amino-4-hydroxy-2-naphthalenesulfonic acid monohydrate?

The CAS number of 6-Amino-4-hydroxy-2-naphthalenesulfonic acid monohydrate is 139123-65-2.

What are the molecular formula and molecular weight of 6-Amino-4-hydroxy-2-naphthalenesulfonic acid monohydrate?

6-Amino-4-hydroxy-2-naphthalenesulfonic acid monohydrate has molecular formula C10H11NO5S and molecular weight 257.26300 g/mol.

Is 6-Amino-4-hydroxy-2-naphthalenesulfonic acid monohydrate hazardous?

6-Amino-4-hydroxy-2-naphthalenesulfonic acid monohydrate has GHS signal word Danger.

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

Last updated:

How to cite: Jingsj. "6-Amino-4-hydroxy-2-naphthalenesulfonic acid monohydrate (CAS 139123-65-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1620984-0 (accessed 2026-10-25).

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