Triethylsilyl trifluoromethanesulfonate, 99% 79271-56-0

Name: Triethylsilyl trifluoromethanesulfonate, 99%
Brand: Vaqora Chemicals
SKU: VQ-001016

About Triethylsilyl trifluoromethanesulfonate, 99%

Vaqora Chemicals supplies Triethylsilyl trifluoromethanesulfonate, a synthetic reagent registered under CAS number 79271-56-0 at a purity of 99%. Its molecular formula is C7H15F3O3SSi and its molecular weight is 264.34 g/mol. It is also known as TES triflate or Triethylsilyl trifluoromethanesulphonate.

In its supplied form it is a colourless to light yellow liquid. Key physical data: a boiling point of 85-86 °C and a density of 1.169 g/mL at 25 °C. Keep containers tightly closed in a cool, well-ventilated area away from heat and ignition sources. The GHS classification uses the signal word “Danger”, so appropriate gloves, eye protection and ventilation are recommended.

It is commonly used for organic synthesis, reaction development and medicinal chemistry. It is used across academic and industrial research.

Vaqora Chemicals supplies Triethylsilyl trifluoromethanesulfonate in 25 g, 100 g and 1 kg packs, each shipped with a Certificate of Analysis (COA), and exports worldwide.

Typical applications

Organic synthesis
Reaction development
Medicinal chemistry

Industries

Specifications & identifiers

Chemical identifiers
Product name	Triethylsilyl trifluoromethanesulfonate, 99%
Catalogue No.	VQ-001016
CAS Number	79271-56-0
IUPAC name	triethylsilyl trifluoromethanesulfonate
Molecular formula	C₇H₁₅F₃O₃SSi
Molecular weight	264.34 g/mol
Exact mass	264.0463
Purity / assay	99%
HSN code	29399900
InChIKey	STMPXDBGVJZCEX-UHFFFAOYSA-N
SMILES	CC[Si](CC)(CC)OS(=O)(=O)C(F)(F)F
PubChem CID	2733308

Physical properties
Physical form	Liquid
Appearance	Colourless to light yellow liquid
Boiling point	85-86 °C
Density	1.169 g/mL at 25 °C
H-bond donors / acceptors	0 / 6
TPSA	51.8 Å²
Synonyms	TES triflate, Trifluoromethanesulfonic acid triethylsilylester, Triethylsilyl trifluoromethanesulphonate, Triethylsilyl Triflate, triethylsilyltrifluoromethanesulfonate, Trifluoromethanesulfonic Acid Triethylsilyl Ester, Methanesulfonic acid, trifluoro-, triethylsilyl ester, Et3SiOTf, Triethylsilyltriflate, CS-B0887, Triethylsilyl trifluromethanesulfonate, triethylsilyl trifluoromethane-sulfonate

Safety & hazard information (GHS)

Corrosive

Signal word: Danger

Hazard statements

H314Causes severe skin burns and eye damage

Precautionary statements: P260, P264, P280, P301 + P330 + P331, P302 + P361 + P354, P304 + P340, P305 + P354 + P338, P316, P321, P363, P405, P501

Classification is indicative (aggregated GHS notifications) and may vary by grade and concentration. Always refer to the SDS supplied with your lot.

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Frequently asked questions

What is the CAS number of Triethylsilyl trifluoromethanesulfonate, 99%?

The CAS Registry Number of Triethylsilyl trifluoromethanesulfonate, 99% is 79271-56-0. It is also known as TES triflate, Trifluoromethanesulfonic acid triethylsilylester, Triethylsilyl trifluoromethanesulphonate.

What is the molecular formula and molecular weight of Triethylsilyl trifluoromethanesulfonate, 99%?

Triethylsilyl trifluoromethanesulfonate, 99% has the molecular formula C7H15F3O3SSi and a molecular weight of 264.34 g/mol. Its IUPAC name is triethylsilyl trifluoromethanesulfonate.

Which grade and pack sizes of Triethylsilyl trifluoromethanesulfonate, 99% can I order?

We supply Triethylsilyl trifluoromethanesulfonate, 99% in (99%) grade, in 25 g, 100 g, 1 kg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Triethylsilyl trifluoromethanesulfonate, 99%?

Yes. Every lot of Triethylsilyl trifluoromethanesulfonate, 99% is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can Triethylsilyl trifluoromethanesulfonate, 99% be shipped internationally?

Yes. Triethylsilyl trifluoromethanesulfonate, 99% is classified as hazardous, so it is packed in UN-approved packaging and shipped as dangerous goods under IATA/IMDG rules. We export worldwide on EXW, FOB, CIF and DAP terms.