5-Chloro-2-methylbenzenesulfonyl chloride

5-氯-2-甲基苯磺酰氯

Also known as: 4-chlorotoluene-2-sulphonyl chloride, 4-Chlorotoluene-2-sulfonyl chloride, 2-chlorosulfonyl-4-chlorotoluene, 5-chloro-2-methylbenzene-1-sulfonyl chloride, Benzenesulfonyl chloride, 5-chloro-2-methyl-

5-Chloro-2-methylbenzenesulfonyl chloride (CAS 34981-38-9) 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 225.092 g/mol. It is also known as 4-chlorotoluene-2-sulphonyl chloride, 4-Chlorotoluene-2-sulfonyl chloride and 2-chlorosulfonyl-4-chlorotoluene. Key properties include a boiling point of 314.9±35.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 144.2±25.9 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 34981-38-9
Jingsj CID: J-1167049-8
Molecular Formula: C₇H₆Cl₂O₂S
Chinese Name: 5-氯-2-甲基苯磺酰氯
Molecular Weight: 225.092 g/mol
Category: Aromatic Hydrocarbons
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	314.9±35.0 °C at 760 mmHg
Density	1.5±0.1 g/cm3
Flash Point	144.2±25.9 °C

Frequently Asked Questions

What is the CAS number of 5-Chloro-2-methylbenzenesulfonyl chloride?

The CAS number of 5-Chloro-2-methylbenzenesulfonyl chloride is 34981-38-9.

What are the molecular formula and molecular weight of 5-Chloro-2-methylbenzenesulfonyl chloride?

5-Chloro-2-methylbenzenesulfonyl chloride has molecular formula C7H6Cl2O2S and molecular weight 225.092 g/mol.

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

Last updated: 8/21/2026

How to cite: Jingsj. "5-Chloro-2-methylbenzenesulfonyl chloride (CAS 34981-38-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1167049-8 (accessed 2026-10-22).

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