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001284 - Methanesulfinic acid, sodium salt

CAS Number 20277-69-4 MDL Number MFCD00040392
Boiling Point Melting Point 218-225 °C
Density Purity 95%
Molecular Formula CH3NaO2S Molecular Weight 102.08
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Hazards and Precautions


Hazard Statements

H302: Harmful if swallowed.

Precautionary Statements

P264: Wash hands thoroughly after handling.
P270: Do not eat, drink or smoke when using this product.
P301 + P312: IF SWALLOWED: Call a POISON CENTER or doctor/physician if you feel unwell.
P330: Rinse mouth.
P501: Dispose of contents/container to local regulations.

None Hazardous for Transport

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Technical Information

A reagent that can react with electrophilic carbon atoms to form methyl sulfones in a single step.1 Applied in stereoselective synthesis of (E)-alkenyl sulfones from alkenes or alkynes,2 preparation of branched allylic sulfones by iridium-catalyzed allylation,3 reaction with α-halo ketones under microwave irradiation to  afford the corresponding β-keto sulfones,4 introduction of a sulfone group to pyridines and diazines,5 synthesis of β-hydroxy-sulfones via opening of epoxides in ionic liquid,6 preparation of aryl and alkenylsulfones from the cross-coupling reaction with organoboronic acids,7 and synthesis of vinyl sulfones.8 Starting material for synthesis of aryl sulfoxides and sulfonium salts in trifluoromethanesulfonic acid as a novel sulfurizing agent.9 Catalyst used in preparation of heteroarenecarbonitriles,10 and in synthesis of 2-aroylquinoxalines, 1-aroylphthalazines, and 4-aroylcinnolines.11


1.        J. Am. Chem. Soc. 195375, 5582.
2.        Synlett 2011, 1308.
3.        Org. Lett. 201012, 92.
4.        Green Chem. Lett. Rev. 20081, 179.
5.        Tetrahedron Lett. 200950, 1928.
6.        J. Sulfur Chem. 200728, 513.
7.        Tetrahedron 200763, 7667.
8.        Synthesis 2007, 1465.
9.        Chem. Comm. 1996, 2099.
10.        Heterocycles 199849, 405.
11.        Heterocycles 199439, 345.