(4-Chlorophenyl)methanesulfonyl chloride

4-氯苯基甲磺酰氯

Also known as: 4-Chlorobenzylsulfonyl chloride, 4-Chloro-alpha-toluenesulfonyl chloride, 4-Chlorobenzenemethanesulfonyl chloride, (4-Chlorophenyl)methanesulfonyl chloride, p-Chloro-alpha-toluenesulfonyl chloride, [(4-Chlorophenyl)methyl]sulfonyl chloride, MFCD01631927

(4-Chlorophenyl)methanesulfonyl chloride (CAS 6966-45-6) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C7H6Cl2O2S and a molecular weight of 225.09200 g/mol. It is also known as 4-Chlorobenzylsulfonyl chloride, 4-Chloro-alpha-toluenesulfonyl chloride and 4-Chlorobenzenemethanesulfonyl chloride. Key properties include a melting point of 93-97 °C, a boiling point of 321.2ºC at 760 mmHg, a density of 1.499 g/cm3 and a flash point of 148ºC. GHS signal word: Danger. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
6966-45-6
Jingsj CID
J-49415-3
Molecular Formula
C7H6Cl2O2S
Chinese Name
4-氯苯基甲磺酰氯
Molecular Weight
225.09200 g/mol
Category
Aromatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Melting Point93-97 °C
Boiling Point321.2ºC at 760 mmHg
Density1.499 g/cm3
Flash Point148ºC

GHS Safety & Compliance

Corrosion / IrritantSignal word: Danger

Frequently Asked Questions

What is the CAS number of (4-Chlorophenyl)methanesulfonyl chloride?

The CAS number of (4-Chlorophenyl)methanesulfonyl chloride is 6966-45-6.

What are the molecular formula and molecular weight of (4-Chlorophenyl)methanesulfonyl chloride?

(4-Chlorophenyl)methanesulfonyl chloride has molecular formula C7H6Cl2O2S and molecular weight 225.09200 g/mol.

Is (4-Chlorophenyl)methanesulfonyl chloride hazardous?

(4-Chlorophenyl)methanesulfonyl 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. "(4-Chlorophenyl)methanesulfonyl chloride (CAS 6966-45-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-49415-3 (accessed 2026-10-22).

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