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2,4-Dichlorobenzenesulfonyl chloride

Also known as: 2,4-Dichlorobenzene-1-sulfonyl chloride, 2,4-Dichlorobenzenesulphonyl chloride, Benzenesulfonyl chloride, 2,4-dichloro-, 2,4-dichloro-benzenesulfonyl chloride, MFCD00052712

2,4-Dichlorobenzenesulfonyl chloride (CAS 16271-33-3) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C6H3Cl3O2S and a molecular weight of 245.511 g/mol. Key properties include a melting point of 55-58 °C(lit.), a boiling point of 308.4±27.0 °C at 760 mmHg, a density of 1.6±0.1 g/cm3 and a flash point of 140.3±23.7 °C. It is classified under GHS with signal word Danger and hazard statements H314 — Causes severe skin burns and eye damage. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
16271-33-3
Jingsj CID
J-19776-2
Molecular Formula
C6H3Cl3O2S
Molecular Weight
245.511 g/mol
Category
Aromatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Melting Point55-58 °C(lit.)
Boiling Point308.4±27.0 °C at 760 mmHg
Density1.6±0.1 g/cm3
Flash Point140.3±23.7 °C
Exact Mass243.891937
PSA42.52000
LogP3.21
Vapor Pressure0.0±0.6 mmHg at 25°C
Refractive Index1.582

GHS Safety & Compliance

CorrosionSignal word: Danger
  • H314 — Causes severe skin burns and eye damage

Customs & Trade Information

HS Code2904909090
SummaryHS:2904909090 sulphonated, nitrated or nitrosated derivatives of hydrocarbons, whether or not halogenated VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:5.5% General tariff:30.0%

Frequently Asked Questions

What is the CAS number of 2,4-Dichlorobenzenesulfonyl chloride?

The CAS number of 2,4-Dichlorobenzenesulfonyl chloride is 16271-33-3.

What are the molecular formula and molecular weight of 2,4-Dichlorobenzenesulfonyl chloride?

2,4-Dichlorobenzenesulfonyl chloride has molecular formula C6H3Cl3O2S and molecular weight 245.511 g/mol.

Is 2,4-Dichlorobenzenesulfonyl chloride hazardous?

2,4-Dichlorobenzenesulfonyl chloride has GHS signal word Danger and hazard statements H314 — Causes severe skin burns and eye damage.

What are the upstream and downstream products of 2,4-Dichlorobenzenesulfonyl chloride?

For 2,4-Dichlorobenzenesulfonyl chloride, Upstream Products: 1,3-Dichlorobenzene, 2,4-Dichlorobenzenesulfonic acid, Chlorosulfonic acid; Downstream Products: 1,3-Difluorobenzene, 2,4-Dichlorobenzenesulfonamide, 2,4-Dichlorobenzenethiol.

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

Last updated:

How to cite: Jingsj. "2,4-Dichlorobenzenesulfonyl chloride (CAS 16271-33-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-19776-2 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.