Sulfonfluorescein

Also known as: Sulfonefluorescein, Sulphonefluorescein, 3',6'-Dihydroxyspiro[3H-2,1-benzoxathiole-3,9'-xanthene]-1,1-dioxide, Spiro[2,1-benzoxathiole-3,9'-xanthene]-3',6'-diol 1,1-dioxide, Spiro[3H-2,1-benzoxathiole-3,9'-[9H]xanthene]-3',6'-diol, 1,1-dioxide, MFCD00070618, EINECS 224-596-9

Sulfonfluorescein (CAS 4424-03-7) is a compound in the Sulfur Compounds category listed in the Jingsj chemical database. It has the molecular formula C19H12O6S and a molecular weight of 368.36000 g/mol. Key properties include a boiling point of 622.1±55.0 °C at 760 mmHg, a density of 1.7±0.1 g/cm3 and a flash point of 330.0±31.5 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 4424-03-7
Jingsj CID: J-35199-7
Molecular Formula: C₁₉H₁₂O₆S
Molecular Weight: 368.36000 g/mol
Category: Sulfur Compounds
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	622.1±55.0 °C at 760 mmHg
Density	1.7±0.1 g/cm3
Flash Point	330.0±31.5 °C
Exact Mass	368.03500
PSA	101.44000
LogP	3.37
Vapor Pressure	0.0±1.9 mmHg at 25°C
Refractive Index	1.810

Customs & Trade Information

HS Code	2934991000
Summary	2934991000. sultones and sultams. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0%

Frequently Asked Questions

What is the CAS number of Sulfonfluorescein?

The CAS number of Sulfonfluorescein is 4424-03-7.

What are the molecular formula and molecular weight of Sulfonfluorescein?

Sulfonfluorescein has molecular formula C19H12O6S and molecular weight 368.36000 g/mol.

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

Last updated: 8/21/2026

How to cite: Jingsj. "Sulfonfluorescein (CAS 4424-03-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-35199-7 (accessed 2026-11-06).

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