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me2so2

METIL SULFONIL METANO (MSM)

Methylsulfonylmethane (MSM) is an organosulfur compound with the formula (CH3)2SO2. It is also known by several other names including DMSO2, methyl sulfone, and dimethyl sulfone.[2] This colorless solid features the sulfonyl functional group and is considered relatively inert chemically. It occurs naturally in some primitive plants, is present in small amounts in many foods and beverages, and is marketed as a dietary supplement. It is also commonly found in the atmosphere above marine areas, where it is used as a carbon source by the airborne bacteria Afipia,[3] and is found distinctively in human melanoma cells.[4]

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Product Description


IUPAC name

dimethyl sulfone
Preferred IUPAC name

methanesulfonylmethane
Other names

methyl sulfone
methylsulfonylmethane
sulfonylbismethane
DMSO2

CAS Number
67-71-0
ChEBI CHEBI:9349
ChEMBL ChEMBL25028
ChemSpider 5978
Jmol interactive 3D Image
KEGG C11142
PubChem 6213
RTECS number PB2785000
UNII 9H4PO4Z4FT
InChI[show]
SMILES[show]

Chemical formula
C2H6O2S
Molar mass 94.13 g·mol−1
Appearance White crystalline solid
Density 1.45 g/cm3
Melting point 109 °C (228 °F; 382 K)
Boiling point 248[1] °C (478 °F; 521 K)

Safety data sheet External MSDS
S-phrases S22 S24/25
NFPA 704
Flash point 143 °C (289 °F; 416 K)

Related compounds
DMSO
dimethyl sulfide
dimethyl sulfate
sulfolane

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