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2,4-Dinitrobenzenesulfonyl chloride

Also known as: 2,4-Dinitrobenzene-1-sulfonyl chloride, 2,4-Dinitrobenzenesulphonyl chloride, 2,4-dinitrobenzene-sulfonyl chloride, 2,4-dinitrobenzenesulfonyl chloride, 2,4-dinitrobenzylsulfonyl chloride, 2,4-dinitrophenylsulfonyl chloride, 4-NO2-2-Nos-Cl, Benzenesulfonyl chloride, 2,4-dinitro-, DNBS-chloride, EINECS 216-749-3

2,4-Dinitrobenzenesulfonyl chloride (CAS 1656-44-6) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C6H3ClN2O6S and a molecular weight of 266.616 g/mol. Key properties include a melting point of 101-103 °C(lit.), a boiling point of 418.1±35.0 °C at 760 mmHg, a density of 1.8±0.1 g/cm3 and a flash point of 206.6±25.9 °C. It is classified under GHS with signal word Danger and hazard statements H314 — Causes severe skin burns and eye damage, H340 and H350 — May cause cancer. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
1656-44-6
Jingsj CID
J-31022-5
Molecular Formula
C6H3ClN2O6S
Molecular Weight
266.616 g/mol
Category
Aromatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Melting Point101-103 °C(lit.)
Boiling Point418.1±35.0 °C at 760 mmHg
Density1.8±0.1 g/cm3
Flash Point206.6±25.9 °C
Exact Mass265.940033
PSA134.16000
LogP2.14
Vapor Pressure0.0±0.9 mmHg at 25°C
Refractive Index1.618

GHS Safety & Compliance

Corrosion / Health HazardSignal word: Danger
  • H314 — Causes severe skin burns and eye damage
  • H340
  • H350 — May cause cancer
  • H373 — May cause damage to organs through prolonged exposure

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-Dinitrobenzenesulfonyl chloride?

The CAS number of 2,4-Dinitrobenzenesulfonyl chloride is 1656-44-6.

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

2,4-Dinitrobenzenesulfonyl chloride has molecular formula C6H3ClN2O6S and molecular weight 266.616 g/mol.

Is 2,4-Dinitrobenzenesulfonyl chloride hazardous?

2,4-Dinitrobenzenesulfonyl chloride has GHS signal word Danger and hazard statements H314 — Causes severe skin burns and eye damage; H340; H350 — May cause cancer.

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

For 2,4-Dinitrobenzenesulfonyl chloride, Upstream Products: Bis(2,4-dinitrophenyl) disulfide, Benzoyl peroxide; Downstream Products: 2,4-Dinitrophenylhydrazine, 4-Nitroacetanilide.

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-Dinitrobenzenesulfonyl chloride (CAS 1656-44-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-31022-5 (accessed 2026-11-09).

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