Methanesulfonic anhydride
ALDRICH/269190 - 97%
Synonym: Mesyl anhydride; Mesylic anhydride; Methanesulfonyl anhydride; Methylsulfonyl methanesulfonate
CAS Number: 7143-01-3
Empirical Formula (Hill Notation): C2H6O5S2
Molecular Weight: 174.20
EC Number: 230-442-1
MDL Number: MFCD00007556
Linear Formula: (CH3SO2)2O
Product Type: Chemical
| assay | 97% |
| bp | 125 °C/4 mmHg (lit.) |
| form | solid |
| InChI | 1S/C2H6O5S2/c1-8(3,4)7-9( |
| InChI key | IZDROVVXIHRYMH-UHFFFAOYSA |
| mp | 64-67 °C (lit.) |
| Quality Level | 200  |
| SMILES string | CS(=O)(=O)OS(C)(=O)=O |
| vapor density | 3.3 (vs air) |
| General description: | Methanesulfonic anhydride is an organic compound that is commonly used as a reagent for the preparation of methyl sulfonates (mesylates). It is also used in the synthesis of methanesulfonamides using various amine precursors. Additionally, the mixture of methanesulfonic anhydride and dimethyl sulfoxide can be used as an oxidizing agent for the oxidation of primary and secondary alcohols to aldehydes and ketones. |
| Packaging: | 5, 25 g in glass bottle |
| Symbol |  GHS05 |
| Signal word | Danger |
| Hazard statements | H314 |
| Precautionary statements | P280 - P305 + P351 + P338 - P310 |
| Hazard Codes | C |
| Risk Statements | 14-35 |
| Safety Statements | 26-36/37/39-45 |
| RIDADR | UN 3261 8 / PGII |
| WGK Germany | WGK 3 |
| Flash Point(F) | Not applicable |
| Flash Point(C) | Not applicable |
| Supplemental Hazard Statements | EUH014 |
| Purity | 97% |
| bp | 125 °C/4 mmHg (lit.) |
| mp | 64-67 °C (lit.) |
| UNSPSC | 12352100 |