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2,2-Difluoro-2-(fluorosulfonyl)acetic acid

Also known as: (Fluorosulfonyl)difluoroacetic acid, 2-(Fluorosulfonyl)difluoroacetic acid, Difluoro(fluorosulfonyl)acetic acid, 2,2-Difluoro-2-(fluorosulfony)acetic acid, 2,2-Difluoro-2-(fluorosulphonyl)ethanoic acid, Difluoro(fluorosulphonyl)acetic acid

2,2-Difluoro-2-(fluorosulfonyl)acetic acid (CAS 1717-59-5) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C2HF3O4S and a molecular weight of 178.087 g/mol. Key properties include a boiling point of 197.8±40.0 °C at 760 mmHg, a density of 1.9±0.1 g/cm3 and a flash point of 73.4±27.3 °C. It is classified under GHS with signal word Danger and hazard statements H300, H310 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.
1717-59-5
Jingsj CID
J-16457-8
Molecular Formula
C2HF3O4S
Molecular Weight
178.087 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point197.8±40.0 °C at 760 mmHg
Density1.9±0.1 g/cm3
Flash Point73.4±27.3 °C
Exact Mass177.954758
PSA79.82000
LogP2.18
Vapor Pressure0.2±0.8 mmHg at 25°C
Refractive Index1.389

GHS Safety & Compliance

Corrosion / Acute ToxicitySignal word: Danger
  • H300
  • H310
  • 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 2,2-Difluoro-2-(fluorosulfonyl)acetic acid?

The CAS number of 2,2-Difluoro-2-(fluorosulfonyl)acetic acid is 1717-59-5.

What are the molecular formula and molecular weight of 2,2-Difluoro-2-(fluorosulfonyl)acetic acid?

2,2-Difluoro-2-(fluorosulfonyl)acetic acid has molecular formula C2HF3O4S and molecular weight 178.087 g/mol.

Is 2,2-Difluoro-2-(fluorosulfonyl)acetic acid hazardous?

2,2-Difluoro-2-(fluorosulfonyl)acetic acid has GHS signal word Danger and hazard statements H300; H310; H314 — Causes severe skin burns and eye damage.

What are the upstream and downstream products of 2,2-Difluoro-2-(fluorosulfonyl)acetic acid?

For 2,2-Difluoro-2-(fluorosulfonyl)acetic acid, Upstream Products: 3,3,4,4-tetrafluoro-1,2-oxathietane 2,2-dioxide, Hexamethyldisiloxane, 2-(Fluorosulfonyl)difluoroacetyl fluoride; Downstream Products: Trifluoromethane, 2,2,3,3-Tetrafluoropropyl difluoromethyl ether, Difluoroacetic acid.

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

Last updated:

How to cite: Jingsj. "2,2-Difluoro-2-(fluorosulfonyl)acetic acid (CAS 1717-59-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-16457-8 (accessed 2026-11-09).

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