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| CAS number | 7143-01-3 |
| Molecular formula | C2H6O5S2 |
| Product name | 7143-01-3 Methanesulfonic anhydride |
| Molecular Structure |  |
Appearance：off-white crystals
Density：1.583 g/cm3
Boiling Point：125ºC (4 mmHg)
Melting Point：64-67ºC
Flash Point：128.7ºC
Refractive Index：1.469
Vapor Density：3.3 (vs air)
