Triethylsilyl trifluoromethanesulfonate, 98%

Description

CAS: 79271-56-0 | C7H15F3O3SSi | 264.33 g/mol

Triethylsilyl trifluoromethanesulfonate acts as a silylating agent. It is also useful as a Lewis acid catalyst. Further, it reacts with 1-diazo-3,3-dimethyl-butan-2-one to prepare 1-diazo-3,3-dimethyl-1-(triethylsilyl)-2-butanone.

This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

Applications
Triethylsilyl trifluoromethanesulfonate acts as a silylating agent. It is also useful as a Lewis acid catalyst. Further, it reacts with 1-diazo-3,3-dimethyl-butan-2-one to prepare 1-diazo-3,3-dimethyl-1-(triethylsilyl)-2-butanone.

Solubility
Miscible with dichloromethane, hydrocarbons, dialkyl ethers and halogenated solvents. Immiscible with water.

Notes
Moisture sensitive. Incompatible with strong oxidizing agents and strong acids.

Specifications

Chemical Identifiers

• CAS: 79271-56-0
• Molecular Formula: C7H15F3O3SSi
• Molecular Weight (g/mol): 264.33
• MDL Number: MFCD00000407
• InChI Key: STMPXDBGVJZCEX-UHFFFAOYSA-N
• Synonym: triethylsilyl triflate, triethylsilyl trifluoromethanesulphonate, tes triflate, triethylsilyltriflate, triethylsilyltrifluoromethanesulfonate, trifluoromethanesulfonic acid triethylsilyl ester, 1,1,1-triethylsilyl trifluoromethanesulfonate, methanesulfonic acid, trifluoro-, triethylsilyl ester, et3siotf, tesotf
• PubChem CID: 2733308
• IUPAC Name: triethylsilyl trifluoromethanesulfonate
• SMILES: CC[Si](CC)(CC)OS(=O)(=O)C(F)(F)F

• Density: 1.225
• Boiling Point: 207°C
• Flash Point: 72°C (161°F)
• Refractive Index: 1.391
• Linear Formula: CF₃SO₃Si(CH₂CH₃)₃
• Quantity: 25 g
• UN Number: UN3265
• Beilstein: 3590541
• Sensitivity: Moisture sensitive
• Solubility Information: Miscible with dichloromethane,hydrocarbons,dialkyl ethers and halogenated solvents. Immiscible with water.
• Formula Weight: 264.33
• Percent Purity: 98%
• Chemical Name or Material: Triethylsilyl trifluoromethanesulfonate

Safety and Handling

Hazard Category	H227-H314
Hazard Statement	GHS H Statement H314-H318-H227 Causes severe skin burns and eye damage. Causes serious eye damage. Combustible liquid.
Precautionary Statement	P210-P260-P264b-P280-P301+P330+P331-P303+P361+P353-P304+P340-P305+P351+P338-P310-P363-P370+P378q-P501c
DOTInformation	Transport Hazard Class: 8; Packing Group: II; Proper Shipping Name: CORROSIVE LIQUID, ACIDIC, ORGANIC, N.O.S.
EINECSNumber	279-124-4
TSCA	No
Recommended Storage	Keep cold; Store under Nitrogen

SDS

RUO – Research Use Only