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Methanesulfinic acid sodium salt, 95%

Product Code. 11347736
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Product Code. 11347736 Supplier Thermo Scientific Alfa Aesar Supplier No. L11360.14
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Estimated Shipment: 21-10-2026
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Description

CAS: 20277-69-4 | CH3NaO2S | 102.083 g/mol

Methanesulfinic acid sodium salt is used in the preparation of alkyl methyl sulfone and methyl bis(4-tolyl)sulfoniumtrifluoromethanesulfonate. It is also employed in the synthesis of two sulfonyl type reversible addition-fragmentation transfer (RAFT) agents such as benzyl methylsulfonyldithioformate and benzyl phenylsulfonyldithioformate.

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
Methanesulfinic acid sodium salt is used in the preparation of alkyl methyl sulfone and methyl bis(4-tolyl)sulfoniumtrifluoromethanesulfonate. It is also employed in the synthesis of two sulfonyl type reversible addition-fragmentation transfer (RAFT) agents such as benzyl methylsulfonyldithioformate and benzyl phenylsulfonyldithioformate.

Solubility
Soluble in water.

Notes
Air sensitive. Hygroscopic. Incompatible with strong oxidizing agents.
TRUSTED_SUSTAINABILITY

Chemical Identifiers

CAS 20277-69-4
Molecular Formula CH3NaO2S
Molecular Weight (g/mol) 102.083
MDL Number MFCD00040392
InChI Key LYPGDCWPTHTUDO-UHFFFAOYSA-M
Synonym sodium methanesulfinate, sodium methanesulphinate, methanesulfinic acid sodium salt, sodium methylsulfinate, methanesulfinic acid, sodium salt, sodium methane sulfinate, methanesulfinicacidsodiumsalt, methanesulphinic acid sodium salt, methane sulfinic acid sodium salt, meso2na
PubChem CID 2733271
IUPAC Name sodium;methanesulfinate
SMILES CS(=O)[O-].[Na+]

Specifications

Melting Point 227°C to 230°C
Linear Formula CH3SO2Na
Quantity 25 g
Beilstein 3565430
Sensitivity Air sensitive; Hygroscopic
Solubility Information Soluble in water.
Formula Weight 102.09
Percent Purity 95%
Chemical Name or Material Methanesulfinic acid sodium salt

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