3,3,4,4-tetrafluoro-1,2-oxathietane 2,2-dioxide

Also known as: Tetrafluoroethane beta-sultone, Tetrafluoroethane-β-sultone, Tetrafluoro-1,2-oxathietane-2,2-dioxide, Perfluoro(1,2-oxathietane 2,2-dioxide), 3,3,4,4-Tetrafluoro-2-oxa-1-thiacyclobutane 1,1-dioxide, 3,3,4,4-tetrafluorooxathietane 2,2-dioxide, 1,2-oxathietane,3,3,4,4-tetrafluoro-,2,2-dioxide, TETRAFLUOROETHANE SS-SULTONE, Tetrafluorooxathietane 2,2-dioxide, tetrafluoro-1,2-oxathiethane-2,2-dioxide

3,3,4,4-tetrafluoro-1,2-oxathietane 2,2-dioxide (CAS 697-18-7) is a compound in the Esters category listed in the Jingsj chemical database. It has the molecular formula C12H11AsO4 and a molecular weight of 180.07600 g/mol. Key properties include a melting point of -35ºC, a boiling point of 596.1±60.0 °C at 760 mmHg, a density of 1.692 and a flash point of 328.3±29.4 °C. No supplier offers are currently listed; request a quote. Record last updated Nov 2, 2026.

CAS No.: 697-18-7
Jingsj CID: J-1519160-3
Molecular Formula: C₁₂H₁₁AsO₄
Molecular Weight: 180.07600 g/mol
Category: Esters
Last updated: 11/2/2026

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Physicochemical Properties

Melting Point	-35ºC
Boiling Point	596.1±60.0 °C at 760 mmHg
Density	1.692
Flash Point	328.3±29.4 °C
Exact Mass	293.987335
PSA	51.75000
LogP	0.41
Vapor Pressure	0.0±1.8 mmHg at 25°C
Refractive Index	1.362

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 3,3,4,4-tetrafluoro-1,2-oxathietane 2,2-dioxide?

The CAS number of 3,3,4,4-tetrafluoro-1,2-oxathietane 2,2-dioxide is 697-18-7.

What are the molecular formula and molecular weight of 3,3,4,4-tetrafluoro-1,2-oxathietane 2,2-dioxide?

3,3,4,4-tetrafluoro-1,2-oxathietane 2,2-dioxide has molecular formula C12H11AsO4 and molecular weight 180.07600 g/mol.

What are the upstream and downstream products of 3,3,4,4-tetrafluoro-1,2-oxathietane 2,2-dioxide?

For 3,3,4,4-tetrafluoro-1,2-oxathietane 2,2-dioxide, Upstream Products: Tetrafluoroethylene, Sulfur trioxide, 1,1,2-Trichloro-1,2,2-trifluoroethane; Downstream Products: Methyl fluorosulfonate, Trifluoroacetyl fluoride, Fluorosulfonic acid.

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

Last updated: 11/2/2026

How to cite: Jingsj. "3,3,4,4-tetrafluoro-1,2-oxathietane 2,2-dioxide (CAS 697-18-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1519160-3 (accessed 2026-11-06).

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