2-Methoxy-4-nitrobenzenesulfonyl chloride

2-甲氧基-4-硝基苯磺酰氯

Also known as: 2-Methoxy-4-nitrobenzenesulphonyl chloride, 4-nitro-2-methoxybenzenesulfonyl chloride, 4-nitro-2-methoxybenzenesulphonyl chloride, 2-(Chlorosulphonyl)-5-nitroanisole, 4-(Chlorosulphonyl)-3-methoxynitrobenzene, NSC 211731, Benzenesulfonyl chloride, 2-methoxy-4-nitro-, MFCD03094697

2-Methoxy-4-nitrobenzenesulfonyl chloride (CAS 21320-91-2) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C7H6ClNO5S and a molecular weight of 251.644 g/mol. It is also known as 2-Methoxy-4-nitrobenzenesulphonyl chloride, 4-nitro-2-methoxybenzenesulfonyl chloride and 4-nitro-2-methoxybenzenesulphonyl chloride. Key properties include a melting point of 90-95 °C(lit.), a boiling point of 406.6±35.0 °C at 760 mmHg, a density of 1.6±0.1 g/cm3 and a flash point of 199.7±25.9 °C. GHS signal word: Danger. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
21320-91-2
Jingsj CID
J-34558-5
Molecular Formula
C7H6ClNO5S
Chinese Name
2-甲氧基-4-硝基苯磺酰氯
Molecular Weight
251.644 g/mol
Category
Aromatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Melting Point90-95 °C(lit.)
Boiling Point406.6±35.0 °C at 760 mmHg
Density1.6±0.1 g/cm3
Flash Point199.7±25.9 °C

GHS Safety & Compliance

CorrosionSignal word: Danger

Frequently Asked Questions

What is the CAS number of 2-Methoxy-4-nitrobenzenesulfonyl chloride?

The CAS number of 2-Methoxy-4-nitrobenzenesulfonyl chloride is 21320-91-2.

What are the molecular formula and molecular weight of 2-Methoxy-4-nitrobenzenesulfonyl chloride?

2-Methoxy-4-nitrobenzenesulfonyl chloride has molecular formula C7H6ClNO5S and molecular weight 251.644 g/mol.

Is 2-Methoxy-4-nitrobenzenesulfonyl chloride hazardous?

2-Methoxy-4-nitrobenzenesulfonyl 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. "2-Methoxy-4-nitrobenzenesulfonyl chloride (CAS 21320-91-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-34558-5 (accessed 2026-10-23).

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