3,5-Dichloro-2-hydroxybenzenesulfonyl chloride

3,5-二氯-2-羟基苯磺酰氯

Also known as: 2,4-Dichlorophenol-6-sulfonyl chloride, 2-hydroxy-3,5-dichlorobenzenesulfonyl chloride, 3,5-Cl2-2-(OH)C6H2SO2Cl, 3,5-Dichloro-2-hydroxybenzenesulphonyl chloride, 3,5-Dichloro-2-hydroxybenzene-1-sulfonyl chloride, 3,5-Dichloro-2-hydroxybenzenesulfonyl chloride, 90-95%, 3,5-Dichloro-2-hydroxybenzenesulphonyl chloride, tech. 90%, 3,5-dichloro-2-hydroxy-benzenesulfonic acid chloride, 3,5-dichloro-6-hydroxy benzenesulphonyl chloride, Benzenesulfonyl chloride, 3,5-dichloro-2-hydroxy, MFCD00007432, EINECS 245-619-9

3,5-Dichloro-2-hydroxybenzenesulfonyl chloride (CAS 23378-88-3) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C6H3Cl3O3S and a molecular weight of 261.51000 g/mol. It is also known as 2,4-Dichlorophenol-6-sulfonyl chloride, 2-hydroxy-3,5-dichlorobenzenesulfonyl chloride and 3,5-Cl2-2-(OH)C6H2SO2Cl. Key properties include a melting point of 78-84ºC, a boiling point of 359ºC at 760 mmHg, a density of 1.761g/cm3 and a flash point of 170.9ºC. GHS signal word: Danger. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
23378-88-3
Jingsj CID
J-30637-9
Molecular Formula
C6H3Cl3O3S
Chinese Name
3,5-二氯-2-羟基苯磺酰氯
Molecular Weight
261.51000 g/mol
Category
Aromatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Melting Point78-84ºC
Boiling Point359ºC at 760 mmHg
Density1.761g/cm3
Flash Point170.9ºC

GHS Safety & Compliance

CorrosionSignal word: Danger

Frequently Asked Questions

What is the CAS number of 3,5-Dichloro-2-hydroxybenzenesulfonyl chloride?

The CAS number of 3,5-Dichloro-2-hydroxybenzenesulfonyl chloride is 23378-88-3.

What are the molecular formula and molecular weight of 3,5-Dichloro-2-hydroxybenzenesulfonyl chloride?

3,5-Dichloro-2-hydroxybenzenesulfonyl chloride has molecular formula C6H3Cl3O3S and molecular weight 261.51000 g/mol.

Is 3,5-Dichloro-2-hydroxybenzenesulfonyl chloride hazardous?

3,5-Dichloro-2-hydroxybenzenesulfonyl 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. "3,5-Dichloro-2-hydroxybenzenesulfonyl chloride (CAS 23378-88-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-30637-9 (accessed 2026-10-23).

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