triethoxysilane

• ChemBase ID: 111884
• Molecular Formular: C6H16O3Si
• Molecular Mass: 164.27494
• Monoisotopic Mass: 164.0868709
• SMILES: CCO[SiH](OCC)OCC
• Canonical SMILES: CCO[SiH](OCC)OCC
• InChI: InChI=1S/C6H16O3Si/c1-4-7-10(8-5-2)9-6-3/h10H,4-6H2,1-3H3
• InChIKey: QQQSFSZALRVCSZ-UHFFFAOYSA-N

NAMES AND DATABASE IDS

Names

• IUPAC name: triethoxysilane
• IUPAC Traditional name: triethoxysilane
• Synonyms: TRIETHOXYSILANE; Triethoxysilane; 三乙氧基硅烷

Database IDs

• CAS Number: 998-30-1
• EC Number: 213-650-7
• MDL Number: MFCD00009061
• Beilstein Number: 1738989
• PubChem SID: 24889344; 162097485; 24864320
• PubChem CID: 6327710; 13830
• Chemspider ID: 13230
• Wikipedia Title: Triethoxysilane

CALCULATED PROPERTIES

• H Acceptors: 3
• H Donor: 0
• LogD (pH = 5.5): 0.7266
• LogD (pH = 7.4): 0.7266
• Log P: 0.7266
• Molar Refractivity: 36.1865 cm^3
• Polarizability: 16.832813 Å^3
• Polar Surface Area: 27.69 Å^2
• Rotatable Bonds: 6
• Lipinski's Rule of Five: true

PROPERTIES

Physical Property

• Melting Point: -170°C
• Boiling Point: 132°C; 134-135 °C(lit.); 134-135°C
• Flash Point: 26 °C; 26°C(78°F); 78.8 °F
• Density: 0.885; 0.89 g/ml; 0.89 g/mL at 25 °C(lit.)
• Refractive Index: 1.3770; n20/D 1.377(lit.); n20/D 1.379

Safety Information

• Storage Warning: Moisture Sensitive
• RTECS: VV6682000
• European Hazard Symbols: Flammable (F); Highly toxic (T+)
• UN Number: 3384; UN3384
• German water hazard class: 3
• Hazard Class: 6.1
• Packing Group: 1; I
• Risk Statements: 10-26-34; R:10-14
• Safety Statements: 26-28-36/37/39-45; 9-23-26-28-36/37/39-45-60; S:8-9-16-29-30
• TSCA Listed: 是
• GHS Pictograms: GHS02; GHS05; GHS06
• GHS Signal Word: Danger
• GHS Hazard statements: H226-H314-H330; H330-H314-H318-H226
• GHS Precautionary statements: P210-P303+P361+P353-P304+P340-P305+P351+P338-P320-P405-P501A; P260-P280-P284-P305 + P351 + P338-P310
• Personal Protective Equipment: Faceshields, full-face respirator (US), Gloves, Goggles, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter
• RID/ADR: UN 3384 6.1/PG 1

Product Information

• Purity: ≥90% (GC); 95%; 96%
• Grade: technical
• Linear Formula: (C2H5O)3SiH

DETAILS

MP Biomedicals - 05221546

MP Biomedicals Rare Chemical collection

Sigma Aldrich - 390143

Packaging
10, 50 mL in glass bottle
Application
Undergoes hydrosilylation reactions with olefins in the presence of Pt catalysts. Useful as a reducing agent.1

REFERENCES

• Pd(0)-catalyzed silylation of aryl iodides provides a route to aryl triethoxysilanes: J. Org. Chem., 62, 8569 (1997).
• In the presence of KF or CsF, reduces aldehydes and ketones to alcohols (via the silyl ether): Tetrahedron, 37, 2165 (1981). With CsF, enones can be reduced selectively to allylic alcohols in high yield: Tetrahedron., 39, 999 (1983).
• Versatile hydrosilylating agent. For use in combination with Ti(O-i-Pr) ₄ in a catalytic system for reduction of esters to alcohols, see: J. Org. Chem ., 57, 3751 (1992). CAUTION! Highly pyrophoric SiH ₄ can form in this reaction: J. Org. Chem., 57, 3221 (1993).
• The same system effects the otherwise difficult reduction of phosphine oxides to phosphines. The products may be reacted in situ with alkyl halides to give a convenient one-pot conversion of phosphine oxides to phosphonium salts: Tetrahedron Lett., 35, 625 (1994).