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Sodium 6-hydroxynaphthalene-2-sulfonate

Also known as: Sodium 6-hydroxy-2-naphthalenesulfonate, 2-Naphthol-6-sulfonic acid sodium salt, Schaeffer's salt, Sodium 2-naphthol-6-sulfonate, 6-Hydroxy-2-naphthalenesulfonic acid sodium salt, Sodium 6-hydroxynaphthalene-2-sulfonate hydrate, 2-Naphthalenesulfonic acid, 6-hydroxy-, sodium salt (1:1)

Sodium 6-hydroxynaphthalene-2-sulfonate (CAS 135-76-2) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C10H7NaO4S and a molecular weight of 246.215 g/mol. Key properties include a melting point of >300 °C(lit.) and a density of 1.549g/cm3. No supplier offers are currently listed; request a quote. Record last updated Nov 3, 2026.

CAS No.
135-76-2
Jingsj CID
J-1110304-1
Molecular Formula
C10H7NaO4S
Molecular Weight
246.215 g/mol
Category
Organic Acids
Last updated
11/3/2026
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Physicochemical Properties

Melting Point>300 °C(lit.)
Density1.549g/cm3
Exact Mass245.996277
PSA85.81000
LogP2.53030

Customs & Trade Information

HS Code2908999090
Summary2908999090 halogenated, sulphonated, nitrated or nitrosated derivatives of phenols or phenol-alcohols。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:5.5%。General tariff:30.0%

Frequently Asked Questions

What is the CAS number of Sodium 6-hydroxynaphthalene-2-sulfonate?

The CAS number of Sodium 6-hydroxynaphthalene-2-sulfonate is 135-76-2.

What are the molecular formula and molecular weight of Sodium 6-hydroxynaphthalene-2-sulfonate?

Sodium 6-hydroxynaphthalene-2-sulfonate has molecular formula C10H7NaO4S and molecular weight 246.215 g/mol.

What are the upstream and downstream products of Sodium 6-hydroxynaphthalene-2-sulfonate?

For Sodium 6-hydroxynaphthalene-2-sulfonate, Downstream Products: 5-chloro-6-methoxynaphthalene-2-sulfonyl chloride, 5-Amino-2-naphthol, 2-(p-Toluidino)-6-naphthalenesulfonic acid.

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

Last updated:

How to cite: Jingsj. "Sodium 6-hydroxynaphthalene-2-sulfonate (CAS 135-76-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1110304-1 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.