1,2-Naphthoquinone-4-sulfonic acid sodium salt
1,2-萘醌-4-磺酸钠
Also known as: Folin's reagent, Sodium 1,2-naphthoquinone-4-sulfonate, 1,2-Naphthoquinone-4-sulfonic acid sodium salt, 1-Naphthalenesulfonic acid, 3,4-dihydro-3,4-dioxo-, sodium salt (1:1), Sodium 3,4-dioxo-3,4-dihydro-1-naphthalenesulfonate, Sodium 3,4-dioxonaphthalene-1-sulfonate, sodium,3,4-dioxonaphthalene-1-sulfonate
1,2-Naphthoquinone-4-sulfonic acid sodium salt (CAS 521-24-4) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C10H5NaO5S and a molecular weight of 260.198 g/mol. It is also known as Folin's reagent, Sodium 1,2-naphthoquinone-4-sulfonate and 1-Naphthalenesulfonic acid, 3,4-dihydro-3,4-dioxo-, sodium salt (1:1). Key property: a melting point of 289 °C (dec.)(lit.). No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 521-24-4
- Jingsj CID
- J-30155-4
- Molecular Formula
- C10H5NaO5S
- Chinese Name
- 1,2-萘醌-4-磺酸钠
- Molecular Weight
- 260.198 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 289 °C (dec.)(lit.) |
|---|
Frequently Asked Questions
What is the CAS number of 1,2-Naphthoquinone-4-sulfonic acid sodium salt?
The CAS number of 1,2-Naphthoquinone-4-sulfonic acid sodium salt is 521-24-4.
What are the molecular formula and molecular weight of 1,2-Naphthoquinone-4-sulfonic acid sodium salt?
1,2-Naphthoquinone-4-sulfonic acid sodium salt has molecular formula C10H5NaO5S and molecular weight 260.198 g/mol.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "1,2-Naphthoquinone-4-sulfonic acid sodium salt (CAS 521-24-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-30155-4 (accessed 2026-10-23).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.