Isatin-5-sulfonic acid sodium salt dihydrate

靛红-5-硫酸钠二水合物

Also known as: sodium,2,3-dioxo-1H-indole-5-sulfonate,dihydrate, 5-Isatinsulfonic acid sodium salt dihydrate, ISATIN-5-SULFONIC ACID SODIUM SALT, Isatin-5-sulfonic acid dihydrate sodium salt, Isatin-5-sulfonic acid sodium salt dihydrate >=98.0%, Sodium 2,3-Dihydro-2,3-dioxo-1H-indole-5-sulfonate Dihydrate Standard, Sodium 2,3-dioxoindoline-5-sulfonate dihydrate, Sodium isatin-5-sulfonate dihydrate

Isatin-5-sulfonic acid sodium salt dihydrate (CAS 207399-16-4) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C8H8NNaO7S and a molecular weight of 285.20600 g/mol. It is also known as sodium,2,3-dioxo-1H-indole-5-sulfonate,dihydrate, 5-Isatinsulfonic acid sodium salt dihydrate and ISATIN-5-SULFONIC ACID SODIUM SALT. Key property: a melting point of ≥300ºC(lit.). GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
207399-16-4
Jingsj CID
J-1502412-5
Molecular Formula
C8H8NNaO7S
Chinese Name
靛红-5-硫酸钠二水合物
Molecular Weight
285.20600 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point≥300ºC(lit.)

GHS Safety & Compliance

IrritantSignal word: Warning

Frequently Asked Questions

What is the CAS number of Isatin-5-sulfonic acid sodium salt dihydrate?

The CAS number of Isatin-5-sulfonic acid sodium salt dihydrate is 207399-16-4.

What are the molecular formula and molecular weight of Isatin-5-sulfonic acid sodium salt dihydrate?

Isatin-5-sulfonic acid sodium salt dihydrate has molecular formula C8H8NNaO7S and molecular weight 285.20600 g/mol.

Is Isatin-5-sulfonic acid sodium salt dihydrate hazardous?

Isatin-5-sulfonic acid sodium salt dihydrate 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. "Isatin-5-sulfonic acid sodium salt dihydrate (CAS 207399-16-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1502412-5 (accessed 2026-10-25).

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