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3-Cyano-4-fluorobenzenesulfonyl chloride

3-氰基-4-氟苯磺酰氯

Also known as: 5-(Chlorosulfonyl)-2-fluorobenzonitrile, 3-Cyano-4-fluoro-benzenesulfonyl chloride, 4-Fluoro-3-cyanobenzenesulfonyl chloride, 5-(chlorosulfonyl)-2-fluorobenzenecarbonitrile, Benzenesulfonyl chloride, 3-cyano-4-fluoro-, 3-cyano-4-fluorobenzene-1-sulfonyl chloride, 4-fluoro-3-cyano-benzenesulfonyl chloride, 3-Cyano-4-fluorobenzenesulphonyl chloride, 4-fluoro-3-cyanobenzenesulphonyl chloride, MFCD03093760

3-Cyano-4-fluorobenzenesulfonyl chloride (CAS 351003-23-1) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C7H3ClFNO2S and a molecular weight of 219.621 g/mol. It is also known as 5-(Chlorosulfonyl)-2-fluorobenzonitrile, 3-Cyano-4-fluoro-benzenesulfonyl chloride and 4-Fluoro-3-cyanobenzenesulfonyl chloride. Key properties include a melting point of 67-70 °C(lit.), a boiling point of 332.8±27.0 °C at 760 mmHg, a density of 1.6±0.1 g/cm3 and a flash point of 155.1±23.7 °C. GHS signal word: Danger. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
351003-23-1
Jingsj CID
J-5386-2
Molecular Formula
C7H3ClFNO2S
Chinese Name
3-氰基-4-氟苯磺酰氯
Molecular Weight
219.621 g/mol
Category
Aromatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Melting Point67-70 °C(lit.)
Boiling Point332.8±27.0 °C at 760 mmHg
Density1.6±0.1 g/cm3
Flash Point155.1±23.7 °C

GHS Safety & Compliance

CorrosionSignal word: Danger

Frequently Asked Questions

What is the CAS number of 3-Cyano-4-fluorobenzenesulfonyl chloride?

The CAS number of 3-Cyano-4-fluorobenzenesulfonyl chloride is 351003-23-1.

What are the molecular formula and molecular weight of 3-Cyano-4-fluorobenzenesulfonyl chloride?

3-Cyano-4-fluorobenzenesulfonyl chloride has molecular formula C7H3ClFNO2S and molecular weight 219.621 g/mol.

Is 3-Cyano-4-fluorobenzenesulfonyl chloride hazardous?

3-Cyano-4-fluorobenzenesulfonyl chloride has GHS signal word Danger.

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

Last updated:

How to cite: Jingsj. "3-Cyano-4-fluorobenzenesulfonyl chloride (CAS 351003-23-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-5386-2 (accessed 2026-10-23).

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