2-diazo-1-naphthol-4-sulfonic acid

1,2-重氮氧基萘-4-磺酸

Also known as: 2-diazo-1-naphthol-4-sulfonic acid hydrate, 3-diazo-3,4-dihydro-4-oxonaphthalene-1-sulfonic acid, 1,2-naphthoxydiazole-4-sulfonic acid, 2-diazonio-4-sulfonaphthalen-1-olate, 2-diazonio-4-sulfo-naphthalen-1-olate, 3-diazo-3,4-dihydro-4-oxo-1-naphthalenesulfonic acid, DIAZO 74, 1,2-naphthoquinone-2-diazide-4-sulfonic acid, 2-Diazo-1,2-naphthoquinone-4-sulfonic acid, EINECS 243-965-5

2-diazo-1-naphthol-4-sulfonic acid (CAS 20680-48-2) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C10H6N2O4S and a molecular weight of 250.23100 g/mol. It is also known as 2-diazo-1-naphthol-4-sulfonic acid hydrate, 3-diazo-3,4-dihydro-4-oxonaphthalene-1-sulfonic acid and 1,2-naphthoxydiazole-4-sulfonic acid. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 20680-48-2
Jingsj CID: J-1427026-2
Molecular Formula: C₁₀H₆N₂O₄S
Chinese Name: 1,2-重氮氧基萘-4-磺酸
Molecular Weight: 250.23100 g/mol
Category: Organic Acids
Last updated: 8/21/2026

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Frequently Asked Questions

What is the CAS number of 2-diazo-1-naphthol-4-sulfonic acid?

The CAS number of 2-diazo-1-naphthol-4-sulfonic acid is 20680-48-2.

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

2-diazo-1-naphthol-4-sulfonic acid has molecular formula C10H6N2O4S and molecular weight 250.23100 g/mol.

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

Last updated: 8/21/2026

How to cite: Jingsj. "2-diazo-1-naphthol-4-sulfonic acid (CAS 20680-48-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1427026-2 (accessed 2026-10-25).

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