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Methanesulfonyl chloride, 98%, Thermo Scientific Chemicals

Catalog No. AAA1338322
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Methanesulfonyl chloride is used as a reagent for conversion of alcohols to mesylate esters such as methanesulfonate, which is an intermediate in substitution reactions, elimination reactions, reductions, and rearrangement reactions viz. Beckmann rearrangement. It is an electrophile and acts as a source of CH3SO2+ group. It is also used to prepare beta-chloro sulfones, methanesulfonamide and heterocyclic compounds containing five membered sultones.

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
Methanesulfonyl chloride is used as a reagent for conversion of alcohols to mesylate esters such as methanesulfonate, which is an intermediate in substitution reactions, elimination reactions, reductions, and rearrangement reactions viz. Beckmann rearrangement. It is an electrophile and acts as a source of CH3SO2+ group. It is also used to prepare beta-chloro sulfones, methanesulfonamide and heterocyclic compounds containing five membered sultones.

Solubility
Miscible with alcohol, ether and organic solvents. Immiscible with water.

Notes
Moisture sensitive. Store in a cool place. Incompatible with strong bases, oxidizing agents and alcohols. It is a lachrymator and reacts with water.

Chemical Identifiers

CAS

124-63-0

Molecular Formula

CH3ClO2S

Molecular Weight (g/mol)

114.54

MDL Number

MFCD00007454

InChI Key

QARBMVPHQWIHKH-UHFFFAOYSA-N

Synonym

mesyl chloride, methylsulfonyl chloride, methyl sulfochloride, methanesulphonyl chloride, chloro methyl sulfone, methanesulfuryl chloride, methanesulfonic acid chloride, methyl sulfonyl chloride, chloromethyl sulfone, mesylchloride

PubChem CID

31297

IUPAC Name

methanesulfonyl chloride

SMILES

CS(Cl)(=O)=O

Specifications

Melting Point

°C to 33°C

Density

1.477

Boiling Point

161°C

Flash Point

97°C (206°F)

Assay Percent Range

98%

Refractive Index

1.452

Quantity

100 g

UN Number

UN3246

Beilstein

506297

Sensitivity

Moisture sensitive

Merck Index

14,5955

Solubility Information

Miscible with alcohol,ether and organic solvents. Immiscible with water.

Formula Weight

114.55

Percent Purity

98%

Physical Form

Liquid

Chemical Name or Material

Methanesulfonyl Chloride

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Hazard Category

H290-H301+H311-H314-H317-H330-H335

Hazard Statement

GHS H Statement
H300-H310-H330-H314-H318

Precautionary Statement

P234-P260-P264b-P270-P271-P272-P280-P284-P303+P361+P353-P304+P340-P305+P351+P338-P310-P330-P331-P333+P313-P363-P390-P501c

DOTInformation

Transport Hazard Class: 6.1; Packing Group: I; Proper Shipping Name: METHANESULFONYL CHLORIDE

EINECSNumber

204-706-1

RTECSNumber

PB2790000

TSCA

Yes

storageNote1

Moisture Sensitive

Recommended Storage

Ambient temperatures
SDS

RUO – Research Use Only

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