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CAS RN: 994-30-9 | Product Number: T0589


Purity: >97.0%(GC)
  • Triethylsilyl Chloride
  • Triethylchlorosilane
  • TES-Cl
Contact Us Contact Us ≥40 
7   6   ≥40 
5   6   ≥40 

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Product Number T0589
Purity / Analysis Method >97.0%(GC)
Molecular Formula / Molecular Weight C__6H__1__5ClSi = 150.72 
Physical State (20 deg.C) Liquid
Store Under Inert Gas Store under inert gas
Condition to Avoid Moisture Sensitive
CAS RN 994-30-9
Reaxys Registry Number 1732860
PubChem Substance ID 87576486
SDBS (AIST Spectral DB) 5610
MDL Number


Appearance Colorless to Light yellow clear liquid
Purity(GC) min. 97.0 %
Properties (reference)
Boiling Point 149 °C
Flash point 30 °C
Specific Gravity (20/20) 0.90
Refractive Index 1.43
Pictogram Pictogram Pictogram
Signal Word Danger
Hazard Statements H314 : Causes severe skin burns and eye damage.
H226 : Flammable liquid and vapor.
H290 : May be corrosive to metals.
Precautionary Statements P501 : Dispose of contents/ container to an approved waste disposal plant.
P240 : Ground/bond container and receiving equipment.
P210 : Keep away from heat/sparks/open flames/hot surfaces. No smoking.
P233 : Keep container tightly closed.
P234 : Keep only in original container.
P243 : Take precautionary measures against static discharge.
P241 : Use explosion-proof electrical/ ventilating/ lighting/ equipment.
P242 : Use only non-sparking tools.
P264 : Wash skin thoroughly after handling.
P280 : Wear protective gloves/ protective clothing/ eye protection/ face protection.
P370 + P378 : In case of fire: Use dry sand, dry chemical or alcohol-resistant foam to extinguish.
P390 : Absorb spillage to prevent material damage.
P303 + P361 + P353 : IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water/shower.
P301 + P330 + P331 : IF SWALLOWED: Rinse mouth. Do NOT induce vomiting.
P363 : Wash contaminated clothing before reuse.
P304 + P340 + P310 : IF INHALED: Remove person to fresh air and keep comfortable for breathing. Immediately call a POISON CENTER/doctor.
P305 + P351 + P338 + P310 : IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Immediately call a POISON CENTER/doctor.
P403 + P235 : Store in a well-ventilated place. Keep cool.
P406 : Store in corrosive resistant container with a resistant inner liner.
P405 : Store locked up.
Related Laws:
Transport Information:
UN Number (DOT-AIR) UN2986
Class (DOT-AIR) 8/3
Packing Group (TCI-A) II
HS Number 2931.90.9010
TCI Practical Example: Protection of a Secondary Alcohol by TESCl


Used Chemicals


To a solution of (±)-1-phenylethyl alcohol (0.242 mL, 2.0 mmol) in THF (4 mL, 0.5 mol/L) was added imidazole (204 mg, 3.0 mmol), then TESCl (0.402 mL, 2.4 mmol) was added dropwise and the mixture was stirred at room temperature for 2 hours. Water (10 mL), ethyl acetate (20 mL) was added to the reaction mixture to quench and was extracted with ethyl acetate (10 mL x 3). The combined organic layer was dried over sodium sulfate and filtered. The solvent was removed under reduced pressure and the residue was purified by column chromatography (ethyl acetate:hexane = 0:100 - 3:97 on silica gel) to give triethyl((±)-1-phenylethoxy)silane as a colorless liquid (373 mg, 79%).

Experimenter’s Comments

The reaction mixture was monitored by TLC (ethyl acetate:hexane = 1:20, Rf = 0.70).

Analytical Data


1H NMR (270 MHz, CDCl3); δ 7.36-7.18 (m, 5H), 4.86 (q, 1H, J = 6.2 Hz), 1.42 (d, 1H, J = 6.2 Hz), 0.94-0.87 (m, 9H), 0.64-0.51 (m, 6H).

Lead Reference

PubMed Literature

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