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  • 8.18313 - tert-Butyldimethylsilyl trifluoromethanesulfonate

8.18313 EMD Millipore

tert-Butyldimethylsilyl trifluoromethanesulfonate

tert-Butyldimethylsilyl trifluoromethanesulfonate for synthesis. CAS 69739-34-0, EC 274-102-0, chemical formula CF₃SO₃Si(CH₃)₂C(CH₃)₃., for synthesis

Synonym: Trifluoromethanesulfonic acid tert-butyldimethylsilyl ester, tert-Butyldimethylsilyl triflate

  • CAS Number 69739-34-0

  • Linear Formula C₇H₁₅F₃O₃SSi

  • Molecular Weight 264.34 g/mol

  •  EC Number 274-102-0



Related Categories Building Blocks, Chemical Synthesis, Organic Building Blocks, Sulfur Compounds
packaging   25 ml in Glass bottle (8183130025)
bp   65 - 67 °C (13 hPa)
density   1.151 g/cm3 (20 °C)
flash point   36 °C
shipped in   ambient
storage temp.   Store at +2°C to +8°C.
specifications   Assay (acidimetric): ≥ 98.0 %
  Density (d 20 °C/ 4 °C): 1.145 - 1.152
  Identity (IR): passes test

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Safety Information

HS Code 
2931 90 00
Hazard Statement(s) 
H226: Flammable liquid and vapour.
H314: Causes severe skin burns and eye damage.
H335: May cause respiratory irritation.
Precautionary Statement(s) 
P210: Keep away from heat.
P280: Wear protective gloves/ protective clothing/ eye protection/ face protection.
P301 + P330 + P331: IF SWALLOWED: Rinse mouth. Do NOT induce vomiting.
P304 + P340: IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing.
P305 + P351 + P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
P308 + P310: IF exposed or concerned: immediately call a POISON CENTER or doctor/ physician.
Storage class 
3 Flammable liquids
WGK 3 highly water endangering
Organic peroxides can be detected in aqueous solutions or organic solvents using the Perex-Test® (Cat. No. 116206). Pure peroxides are diluted to min. 10% in a suitable solvent or with water and added in small portions, with temperature control, to iron(II) chloride (Cat. No. 103860) solution. Test for complete reaction with the Perex-Test® (Cat. No. 116206). Container D. Explosive substances (storage class 4.1A) should be packed separately and tightly sealed for disposal. Ensure sufficient phlegmatization by water or the stated phlegmatizing agent!
Hazard Pictogram(s) 
GHS02  GHS02
Hazard Pictogram(s) 
GHS05  GHS05
Hazard Pictogram(s) 
GHS07  GHS07
Hazard Symbols 
Corrosive  Corrosive
Hazard Symbols 
Explosive  Explosive
Declaration (railroad and road) ADR, RID 
UN 2920 , 8 (3), I
Declaration (transport by air) IATA-DGR 
UN 2920 , 8 (3), I
Declaration (transport by sea) IMDG-Code 
UN 2920 , 8 (3), I
Categories of danger 
explosive, flammable, corrosive
R Phrase 
R 2-10-34-37
Risk of explosion by shock, friction, fire or other sources of ignition.Flammable.Causes burns.Irritating to respiratory system.
S Phrase 
S 15-26-36/37/39-45
Keep away from heat.In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.Wear suitable protective clothing, gloves and eye/face protection.In case of accident or if you feel unwell, seek medical advice immediately (show the label where possible).
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