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2-Chlorobenzenesulfonyl chloride, 98%

Product Code. 11467966
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Product Code. 11467966 Supplier Thermo Scientific Alfa Aesar Supplier No. A14054.14
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Estimated Shipment: 23-09-2026
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Description

CAS: 2905-23-9 | C6H4Cl2O2S | 211.06 g/mol

2-Chlorobenzenesulfonyl chloride is used as an organic chemical synthesis intermediate.

This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

Applications
2-Chlorobenzenesulfonyl chloride is used as an organic chemical synthesis intermediate.

Solubility
It reacts with water.

Notes
Moisture sensitive. Incompatible with oxidizing agents and bases.
TRUSTED_SUSTAINABILITY

Chemical Identifiers

CAS 2905-23-9
Molecular Formula C6H4Cl2O2S
Molecular Weight (g/mol) 211.06
MDL Number MFCD00051520
InChI Key KMVZDSQHLDGKGV-UHFFFAOYSA-N
Synonym 2-chlorobenzenesulphonyl chloride, 2-chlorobenzene-1-sulfonyl chloride, 2-chlorobenzenesulfonylchloride, benzenesulfonyl chloride, 2-chloro, o-chlorobenzenesulfonyl chloride, o-chlorobenzenesulfochloride, 2-chlorophenylsulfonyl chloride, 2-chloro-benzenesulfonyl chloride, benzenesulfonyl chloride, chloro, chloro 2-chlorophenyl sulfone
PubChem CID 76187
IUPAC Name 2-chlorobenzenesulfonyl chloride
SMILES ClC1=CC=CC=C1S(Cl)(=O)=O

Specifications

Melting Point 26°C to 28°C
Density 1.548
Boiling Point 150°C to 152°C (12 mmHg)
Flash Point 140°C (284°F)
Refractive Index 1.576
Quantity 25 g
UN Number UN3265
Beilstein 974321
Sensitivity Moisture sensitive
Solubility Information It reacts with water.
Formula Weight 211.07
Percent Purity 98%
Chemical Name or Material 2-Chlorobenzenesulfonyl chloride
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