3-Cyanobenzenesulfonyl chloride

3-氰基苯磺酰氯

Also known as: 3-Cyanobenzene-1-sulfonyl chloride, 3-Cyanobenzenesulphonyl chloride, 3-Cyanophenylsulfonyl chloride, m-Cyanobenzenesulfonyl chloride, 3-(Chlorosulfonyl)benzonitrile, AKOS BB-9463, BUTTPARK 33\11-95, Benzenesulfonyl chloride, 3-cyano-, MFCD00203480

3-Cyanobenzenesulfonyl chloride (CAS 56542-67-7) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C7H4ClNO2S and a molecular weight of 201.630 g/mol. It is also known as 3-Cyanobenzene-1-sulfonyl chloride, 3-Cyanobenzenesulphonyl chloride and 3-Cyanophenylsulfonyl chloride. Key properties include a melting point of 49-53 °C(lit.), a boiling point of 326.7±25.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 151.4±23.2 °C. GHS signal word: Danger. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
56542-67-7
Jingsj CID
J-31463-7
Molecular Formula
C7H4ClNO2S
Chinese Name
3-氰基苯磺酰氯
Molecular Weight
201.630 g/mol
Category
Aromatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Melting Point49-53 °C(lit.)
Boiling Point326.7±25.0 °C at 760 mmHg
Density1.5±0.1 g/cm3
Flash Point151.4±23.2 °C

GHS Safety & Compliance

Corrosion / IrritantSignal word: Danger

Frequently Asked Questions

What is the CAS number of 3-Cyanobenzenesulfonyl chloride?

The CAS number of 3-Cyanobenzenesulfonyl chloride is 56542-67-7.

What are the molecular formula and molecular weight of 3-Cyanobenzenesulfonyl chloride?

3-Cyanobenzenesulfonyl chloride has molecular formula C7H4ClNO2S and molecular weight 201.630 g/mol.

Is 3-Cyanobenzenesulfonyl chloride hazardous?

3-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. "3-Cyanobenzenesulfonyl chloride (CAS 56542-67-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-31463-7 (accessed 2026-10-22).

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