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Methyl 2,2-difluoro-2-(fluorosulfonyl)acetate

Also known as: Difluoro(fluorosulfonyl)acetic Acid Methyl Ester, Methyl (Fluorosulfonyl)difluoroacetate, Methyl difluoro(fluorosulfonyl)acetate, Methyl fluorosulfonyldifluoroacetate, Methyl fluorosulphonyldifluoroacetate, METHYL 2,2-DIFLUORO-2-(FLUOROSULFONYL)ACETATE, METHYL 2-(FLUOROSULFONYL)DIFLUOROACETATE, METHYL DIFLUORO(FLUOROSULFONYL)ACETATE, METHYL FLUOROSULFONYLDIFLUOROACETATE, METHYL FLUOROSULPHONYLDIFLUOROACETATE, MFCD00144316

Methyl 2,2-difluoro-2-(fluorosulfonyl)acetate (CAS 680-15-9) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C3H3F3O4S and a molecular weight of 192.114 g/mol. Key properties include a boiling point of 150.0±40.0 °C at 760 mmHg, a density of 1.6±0.1 g/cm3 and a flash point of 44.5±27.3 °C. It is classified under GHS with signal word Danger and hazard statements H226 — Flammable liquid and vapour and H314 — Causes severe skin burns and eye damage. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
680-15-9
Jingsj CID
J-42510-5
Molecular Formula
C3H3F3O4S
Molecular Weight
192.114 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point150.0±40.0 °C at 760 mmHg
Density1.6±0.1 g/cm3
Flash Point44.5±27.3 °C
Exact Mass191.970413
PSA68.82000
LogP1.85
Vapor Pressure3.9±0.3 mmHg at 25°C
Refractive Index1.371

GHS Safety & Compliance

Flammable / CorrosionSignal word: Danger
  • H226 — Flammable liquid and vapour
  • H314 — Causes severe skin burns and eye damage

Customs & Trade Information

HS Code2915900090
Summary2915900090 other saturated acyclic monocarboxylic acids and their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulphonated, nitrated or nitrosated derivatives VAT:17.0% Tax rebate rate:9.0% Supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward) MFN tariff:5.5% General tariff:30.0%

Frequently Asked Questions

What is the CAS number of Methyl 2,2-difluoro-2-(fluorosulfonyl)acetate?

The CAS number of Methyl 2,2-difluoro-2-(fluorosulfonyl)acetate is 680-15-9.

What are the molecular formula and molecular weight of Methyl 2,2-difluoro-2-(fluorosulfonyl)acetate?

Methyl 2,2-difluoro-2-(fluorosulfonyl)acetate has molecular formula C3H3F3O4S and molecular weight 192.114 g/mol.

Is Methyl 2,2-difluoro-2-(fluorosulfonyl)acetate hazardous?

Methyl 2,2-difluoro-2-(fluorosulfonyl)acetate has GHS signal word Danger and hazard statements H226 — Flammable liquid and vapour; H314 — Causes severe skin burns and eye damage.

What are the upstream and downstream products of Methyl 2,2-difluoro-2-(fluorosulfonyl)acetate?

For Methyl 2,2-difluoro-2-(fluorosulfonyl)acetate, Upstream Products: 3,3,4,4-tetrafluoro-1,2-oxathietane 2,2-dioxide, Sodium methoxide, Methanol; Downstream Products: 4-(Trifluoromethylthio)chlorobenzene, iodomethane, 4-(Trifluoromethylthio)toluene.

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

Last updated:

How to cite: Jingsj. "Methyl 2,2-difluoro-2-(fluorosulfonyl)acetate (CAS 680-15-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-42510-5 (accessed 2026-11-09).

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