2-Chloro-4-cyanobenzenesulfonyl chloride

2-氯-4-氰基苯磺酰氯

Also known as: 2-Chloro-4-cyanobenzene-1-sulfonyl chloride, 2-Chloro-4-cyanobenzenesulphonyl chloride, 3-Chloro-4-(chlorosulphonyl)benzonitrile, Benzenesulfonyl chloride, 2-chloro-4-cyano-, MFCD00177089

2-Chloro-4-cyanobenzenesulfonyl chloride (CAS 254749-11-6) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C7H3Cl2NO2S and a molecular weight of 236.07500 g/mol. It is also known as 2-Chloro-4-cyanobenzene-1-sulfonyl chloride, 2-Chloro-4-cyanobenzenesulphonyl chloride and 3-Chloro-4-(chlorosulphonyl)benzonitrile. Key properties include a melting point of 102-106 °C, a boiling point of 348.9ºC at 760mmHg, a density of 1.65g/cm3 and a flash point of 164.8ºC. GHS signal word: Danger. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
254749-11-6
Jingsj CID
J-26984-9
Molecular Formula
C7H3Cl2NO2S
Chinese Name
2-氯-4-氰基苯磺酰氯
Molecular Weight
236.07500 g/mol
Category
Aromatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Melting Point102-106 °C
Boiling Point348.9ºC at 760mmHg
Density1.65g/cm3
Flash Point164.8ºC

GHS Safety & Compliance

Corrosion / IrritantSignal word: Danger

Frequently Asked Questions

What is the CAS number of 2-Chloro-4-cyanobenzenesulfonyl chloride?

The CAS number of 2-Chloro-4-cyanobenzenesulfonyl chloride is 254749-11-6.

What are the molecular formula and molecular weight of 2-Chloro-4-cyanobenzenesulfonyl chloride?

2-Chloro-4-cyanobenzenesulfonyl chloride has molecular formula C7H3Cl2NO2S and molecular weight 236.07500 g/mol.

Is 2-Chloro-4-cyanobenzenesulfonyl chloride hazardous?

2-Chloro-4-cyanobenzenesulfonyl 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. "2-Chloro-4-cyanobenzenesulfonyl chloride (CAS 254749-11-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-26984-9 (accessed 2026-10-24).

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