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2-Diazo-1-naphthol-4-sulfonic acid sodium salt

Also known as: 1,2-Naphthoquinone-2-diazido-4-sulfonic acid sodium salt, 3-Diazo-3,4-dihydro-4-oxo-1-naphthalenesulfonic acid sodium salt, 2,1,4 Diazo Salt, NAS-4, Sodium 3-diazonio-4-oxido-1-naphthalenesulfonate, NSD sodium salt monohydrate, Diazo-2,1,4-sulfonic acid sodium salt, MFCD02091674, EINECS 264-719-3, 1,2-Naphthochinondiazid-(2)-4-sulfonsaeure Natriumsalz

2-Diazo-1-naphthol-4-sulfonic acid sodium salt (CAS 64173-96-2) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C10H5N2NaO4S and a molecular weight of 272.21500 g/mol. Key properties include a melting point of 886 °C(lit.), a boiling point of 1470 °C and a density of 9.53. No supplier offers are currently listed; request a quote. Record last updated Nov 2, 2026.

CAS No.
64173-96-2
Jingsj CID
J-9157-6
Molecular Formula
C10H5N2NaO4S
Molecular Weight
272.21500 g/mol
Category
Organic Acids
Last updated
11/2/2026

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Physicochemical Properties

Melting Point886 °C(lit.)
Boiling Point1470 °C
Density9.53
Exact Mass289.99700
PSA113.73000
LogP2.29660
Refractive Index2.67

Frequently Asked Questions

What is the CAS number of 2-Diazo-1-naphthol-4-sulfonic acid sodium salt?

The CAS number of 2-Diazo-1-naphthol-4-sulfonic acid sodium salt is 64173-96-2.

What are the molecular formula and molecular weight of 2-Diazo-1-naphthol-4-sulfonic acid sodium salt?

2-Diazo-1-naphthol-4-sulfonic acid sodium salt has molecular formula C10H5N2NaO4S and molecular weight 272.21500 g/mol.

What are the upstream and downstream products of 2-Diazo-1-naphthol-4-sulfonic acid sodium salt?

For 2-Diazo-1-naphthol-4-sulfonic acid sodium salt, Upstream Products: 1-Amino-2-naphthol-4-sulfonic acid, 1-naphthol-4-sulfonic acid sodium salt, Sodium 4-amino-1-naphthalenesulfonate; Downstream Products: 2-Diazo-1-naphthol-4-sulfonyl chloride.

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

Last updated:

How to cite: Jingsj. "2-Diazo-1-naphthol-4-sulfonic acid sodium salt (CAS 64173-96-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-9157-6 (accessed 2026-11-09).

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