Methyl trifluoromethanesulfonate
ALDRICH/164283 - ≥98%
Synonym: Methyl triflate
CAS Number: 333-27-7
Empirical Formula (Hill Notation): C2H3F3O3S
Molecular Weight: 164.10
EC Number: 206-371-7
MDL Number: MFCD00000409
Linear Formula: CF3SO2OCH3
Product Type: Chemical
| assay | ≥98% |
| bp | 94-99 °C (lit.) |
| density | 1.45 g/mL at 25 °C (lit.) |
| form | liquid |
| InChI | 1S/C2H3F3O3S/c1-8-9(6,7)2 |
| InChI key | OIRDBPQYVWXNSJ-UHFFFAOYSA |
| Quality Level | 200  |
| refractive index | n |
| SMILES string | COS(=O)(=O)C(F)(F)F |
| storage temp. | 2-8°C |
| Application: | Methyl trifluoromethanesulfonate can be used as a methylation reagent: • In the determination of polysulfides, zerovalent sulfur in sulfide-rich water wells, and polysulfide species in electrolyte of a lithium–sulfur battery using chromatography-based techniques. • In reactions with potassium enolates. • For the conversion of amines to methyl ammonium triflates. |
| General description: | Methyl trifluoromethanesulfonate is a strong methylating reagent, commonly used for the pre-methylation of polysaccharides under mild basic conditions. |
| Packaging: | 10, 50, 250 g in Clear glass ampules |
| Symbol |    GHS02,GHS05,GHS06 |
| Signal word | Danger |
| Hazard statements | H226 - H301 + H311 - H314 - H330 |
| Precautionary statements | P210 - P233 - P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338 |
| Hazard Codes | C |
| Risk Statements | 10-34 |
| Safety Statements | 26-36/37/39-45 |
| RIDADR | UN 2920 3(8) / PGII |
| WGK Germany | WGK 3 |
| Flash Point(F) | 100.4 °F - closed cup |
| Flash Point(C) | 38 °C - closed cup |
| Purity | ≥98% |
| bp | 94-99 °C (lit.) |
| Density | 1.45 g/mL at 25 °C (lit.) |
| Refractive Index | n |
| Storage Temp. | 2-8°C |
| UNSPSC | 12352108 |