164283

Methyl trifluoromethanesulfonate

≥98%

• Synonym(s): Methyl triflate
• Linear Formula: CF₃SO₂OCH₃
• CAS Number: 333-27-7
• Molecular Weight: 164.10
• Beilstein: 774772
• EC Number: 206-371-7
• MDL number: MFCD00000409
• UNSPSC Code: 12352108
• PubChem Substance ID: 24850067
• NACRES: NA.22

Properties

• Quality Level: 200
• Assay: ≥98%
• form: liquid
• refractive index: n20/D 1.326 (lit.)
• bp: 94-99 °C (lit.)
• density: 1.45 g/mL at 25 °C (lit.)
• functional group: fluoro; triflate
• storage temp.: 2-8°C
• SMILES string: COS(=O)(=O)C(F)(F)F
• InChI: 1S/C2H3F3O3S/c1-8-9(6,7)2(3,4)5/h1H3
• InChI key: OIRDBPQYVWXNSJ-UHFFFAOYSA-N

Description

General description

Methyl trifluoromethanesulfonate is a strong methylating reagent, commonly used for the pre-methylation of polysaccharides under mild basic conditions.

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.

Safety Information

• Pictograms: GHS02,GHS06,GHS05
• 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 Classifications: Acute Tox. 1 Inhalation - Acute Tox. 3 Dermal - Acute Tox. 3 Oral - Eye Dam. 1 - Flam. Liq. 3 - Skin Corr. 1B
• Storage Class Code: 3 - Flammable liquids
• WGK: WGK 3
• Flash Point(F): 100.4 °F - closed cup
• Flash Point(C): 38 °C - closed cup
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves