Methanesulfonic anhydrideMethanesulfonic anhydride (Ms2O) is the organosulfur compound with the formula (CH3SO2)2O. It is the acid anhydride of methanesulfonic acid. Like methanesulfonyl chloride (MsCl), it may be used to generate mesylates (methanesulfonyl esters). Read from the Chembox of the Wikipedia article Methanesulfonic anhydride, revision 1361289465.

Property

Value

Formula

C2H6O5S2, 174.20 g/mol

Melting point

69.75 °C

Density

0.92 g/cm³

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