3,4,5-Trifluorobenzenesulfonyl chloride

3,4,5-三氟苯磺酰氯

Also known as: 3,4,5-Trifluorobenzenesulphonyl chloride, 3,4,5-Trifluorobenzene-1-sulfonyl chloride, Benzenesulfonyl chloride, 3,4,5-trifluoro-, Benzenesulfonyl chloride, 3,4,5-trifluoro- (9CI), 3,4,5-Trifluorobenzenesulfonylchloride

3,4,5-Trifluorobenzenesulfonyl chloride (CAS 351003-43-5) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C6H2ClF3O2S and a molecular weight of 230.592 g/mol. It is also known as 3,4,5-Trifluorobenzenesulphonyl chloride, 3,4,5-Trifluorobenzene-1-sulfonyl chloride and Benzenesulfonyl chloride, 3,4,5-trifluoro-. Key properties include a melting point of 76-77ºC, a boiling point of 246.1±35.0 °C at 760 mmHg, a density of 1.7±0.1 g/cm3 and a flash point of 102.7±25.9 °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.
351003-43-5
Jingsj CID
J-16988-2
Molecular Formula
C6H2ClF3O2S
Chinese Name
3,4,5-三氟苯磺酰氯
Molecular Weight
230.592 g/mol
Category
Aromatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Melting Point76-77ºC
Boiling Point246.1±35.0 °C at 760 mmHg
Density1.7±0.1 g/cm3
Flash Point102.7±25.9 °C
Exact Mass229.941605
PSA42.52000
LogP3.00
Vapor Pressure0.0±0.5 mmHg at 25°C
Refractive Index1.499

GHS Safety & Compliance

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

Customs & Trade Information

HS Code2904909090
SummaryHS:2904909090 sulphonated, nitrated or nitrosated derivatives of hydrocarbons, whether or not halogenated VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:5.5% General tariff:30.0%

Frequently Asked Questions

What is the CAS number of 3,4,5-Trifluorobenzenesulfonyl chloride?

The CAS number of 3,4,5-Trifluorobenzenesulfonyl chloride is 351003-43-5.

What are the molecular formula and molecular weight of 3,4,5-Trifluorobenzenesulfonyl chloride?

3,4,5-Trifluorobenzenesulfonyl chloride has molecular formula C6H2ClF3O2S and molecular weight 230.592 g/mol.

Is 3,4,5-Trifluorobenzenesulfonyl chloride hazardous?

3,4,5-Trifluorobenzenesulfonyl chloride has GHS signal word Danger and hazard statements H226 — Flammable liquid and vapour; H314 — Causes severe skin burns and eye damage.

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

Last updated:

How to cite: Jingsj. "3,4,5-Trifluorobenzenesulfonyl chloride (CAS 351003-43-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-16988-2 (accessed 2026-10-28).

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