4-Amino-1-naphthalenesulfonic acid sodium salt hydrate

4-氨基-1-萘磺酸钠水合物

Also known as: 1-Naphthylamine-4-sulfonic acid sodium salt hydrate, Naphthionic acid sodium salt hydrate, Sodium 4-amino-1-naphthalenesulfonate hydrate, Sodium naphthionate hydrate, Sodium 1-naphthylamine-4-sulfonate

4-Amino-1-naphthalenesulfonic acid sodium salt hydrate (CAS 123333-48-2) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C10H8NNaO3S and a molecular weight of 245.23000 g/mol. It is also known as 1-Naphthylamine-4-sulfonic acid sodium salt hydrate, Naphthionic acid sodium salt hydrate and Sodium 4-amino-1-naphthalenesulfonate hydrate. Key properties include a melting point of 280ºC (dec.)(lit.) and a density of 1.502g/cm3. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
123333-48-2
Jingsj CID
J-39974-2
Molecular Formula
C10H8NNaO3S
Chinese Name
4-氨基-1-萘磺酸钠水合物
Molecular Weight
245.23000 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point280ºC (dec.)(lit.)
Density1.502g/cm3

GHS Safety & Compliance

IrritantSignal word: Warning

Frequently Asked Questions

What is the CAS number of 4-Amino-1-naphthalenesulfonic acid sodium salt hydrate?

The CAS number of 4-Amino-1-naphthalenesulfonic acid sodium salt hydrate is 123333-48-2.

What are the molecular formula and molecular weight of 4-Amino-1-naphthalenesulfonic acid sodium salt hydrate?

4-Amino-1-naphthalenesulfonic acid sodium salt hydrate has molecular formula C10H8NNaO3S and molecular weight 245.23000 g/mol.

Is 4-Amino-1-naphthalenesulfonic acid sodium salt hydrate hazardous?

4-Amino-1-naphthalenesulfonic acid sodium salt hydrate has GHS signal word Warning.

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

Last updated:

How to cite: Jingsj. "4-Amino-1-naphthalenesulfonic acid sodium salt hydrate (CAS 123333-48-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-39974-2 (accessed 2026-10-23).

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