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Silanes and silicones

Vinyltriethoxysilane

Also known as Triethoxyvinylsilane, Triethoxy(vinyl)silane, Silane, ethenyltriethoxy-

CAS 78-08-0Formula C8H18O3SiMolar mass 190.32 g/molEC 201-081-7
GHS signal word: Warning. Pictograms: Flammable, Harmful or irritant 37 suppliers listed
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Vinyltriethoxysilane chemical structure, C8H18O3Si, CAS 78-08-0
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
78-08-0
Formula
C8H18O3Si
Physical form
Liquid
Density
0.901 @25 °C
HS code
293190
Category
Silanes and silicones
Illustrative photo, closed blue steel drums of liquid in a chemical plant
Typical packagingIllustrative packaging image, not the actual product

What is Vinyltriethoxysilane?

Plain description, key identifiers and synonyms

Vinyltriethoxysilane is a chemical substance with the molecular formula C8H18O3Si and a molar mass of 190.32 g/mol. Its CAS registry number is 78-08-0. The IUPAC name is ethenyl(triethoxy)silane.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
ethenyl(triethoxy)silane
CAS number
78-08-0 CAS number cross-checked
EC number
201-081-7
Molecular formula
C8H18O3Si
UNII
8V1TKX755V
MDL number
MFCD00009063
INCI name
VINYLTRIETHOXYSILANE
InChIKey
FWDBOZPQNFPOLF-UHFFFAOYSA-N
InChI
InChI=1S/C8H18O3Si/c1-5-9-12(8-4,10-6-2)11-7-3/h8H,4-7H2,1-3H3
SMILES (canonical and isomeric)
CCO[Si](C=C)(OCC)OCC

Synonyms

  • Triethoxyvinylsilane
  • Triethoxy(vinyl)silane
  • Silane, ethenyltriethoxy-
  • Triethoxyvinylsilicane
  • Silane, triethoxyvinyl-
  • Triethoxyvinyl silane
  • VTES
  • Silane A 151
  • KBE 1003
  • NV 1107
  • Ethenyltriethoxysilane
  • ethenyl(triethoxy)silane
  • Union carbide A-151
  • VTS-E
  • Silane, vinyl triethoxy 1-151
  • Ethenyltriethyloxy-silane
  • 4-04-00-04256 (Beilstein Handbook Reference)
  • (Triethoxysilyl)ethylene
  • ethenyl-triethoxysilane
  • Dynasylan VTEO
  • vinyl triethoxysilane
  • VTEO
  • triethoxyvinyl silicane
  • vinyl triethoxy silane
  • vinyltri(ethoxy)silane
Show all 31 synonyms
  • Ethenyltri(ethoxy)silane
  • Triethoxyvinylsilane, 97%
  • Tri(ethoxo)(vinyl)silane
  • Fwdbozpqnfpolf-uhfffaoysa-
  • Triethoxyvinylsilane, >=98%, deposition grade
  • Triethoxyvinylsilane 100 microg/mL in Acetonitrile

Physical and chemical properties

Measured values and descriptors computed from the structure

Physical and chemical properties

Measured values, check the supplier specification for your grade

Physical form
Liquidexp.
Density
0.901 @25 °Cexp.
Vapour pressure
2.25 [mm Hg] @20 °Cexp.

Values vary by grade. Ask suppliers for the COA or TDS of the batch you buy.

Computed descriptors

Calculated from the structure, useful for screening and formulation

Molecular weight
190.32 g/molcalc.
Exact mass
190.1025 Dacalc.
LogP (octanol/water)
1.76calc.
Topological polar surface area
27.69 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
3calc.
Rotatable bonds
7calc.
Heavy atoms
12calc.
Rings
0calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0.75calc.
Formal charge
0calc.
Stereocentres
0calc.
Lipinski rule of five
Passes (0 violations)calc.

Calculated for screening. Confirm critical figures with the supplier.

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Warning
GHS02: Flammable
Flammable
GHS07: Harmful or irritant
Harmful or irritant

Hazard statements

  • H226Flammable liquid and vapour.
  • H319Causes serious eye irritation.
  • H335May cause respiratory irritation.
Precautionary statements (20)
  • P210Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
  • P233Keep container tightly closed.
  • P240Ground and bond container and receiving equipment.
  • P241Use explosion-proof electrical, ventilating and lighting equipment.
  • P242Use non-sparking tools.
  • P243Take action to prevent static discharges.
  • P261Avoid breathing dust, fume, gas, mist, vapours or spray.
  • P264 + P265Wash skin thoroughly after handling. Do not touch eyes.
  • P271Use only outdoors or in a well-ventilated area.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P303 + P361 + P353If on skin (or hair): Take off immediately all contaminated clothing. Rinse skin with water or shower.
  • P304 + P340If inhaled: Remove person to fresh air and keep comfortable for breathing.
  • P305 + P351 + P338If in eyes: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
  • P319Get medical help if you feel unwell.
  • P337 + P317If eye irritation persists: Get medical help.
  • P370 + P378In case of fire: Use appropriate media to extinguish.
  • P403 + P233Store in a well-ventilated place. Keep container tightly closed.
  • P403 + P235Store in a well-ventilated place. Keep cool.
  • P405Store locked up.
  • P501Dispose of contents and container in accordance with local regulations.

GHS classification summary, not a safety data sheet (SDS). Classifications can differ by supplier, grade and concentration. Always check the supplier's SDS.

Full safety data and first aid

Vinyltriethoxysilane suppliers

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All 37 suppliers
30 of 30 offers

Suppliers marked Unclaimed profile have not claimed their profile yet. They are not verified by CompoundList, their offers are price on request and details may have changed, so please confirm them with the supplier. Company representatives can claim a profile with a business email on the company's own website domain. Our team verifies each claim and sends the result by email.

Where suppliers are based

37 suppliers in 8 countries

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Vinyltriethoxysilane price

Indicative price range per kg from live supplier offers

No published prices right now

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Uses and applications

What the substance is used for, by industry and function

Industrial uses: Intermediate, Adhesion/cohesion promoter, Terminator/Blocker, Stabilizing agent, Chemical reaction regulator, Binder.

Consumer uses: Adhesion/cohesion promoter, Hardener.

Cosmetic ingredient, INCI name VINYLTRIETHOXYSILANE(film forming)

Pharmacological actions

  • Adhesives

Functional uses

  • Adhesion/cohesion promoter
  • Chemical reaction regulator
  • Conductive agent
  • Dispersing agent
  • Film former
  • Hardener
  • Wetting agent (non-aqueous)

Cosmetic functions

  • Film forming

Regulatory status

Inventories, regulations and trade controls that list this substance

Health and food

  • EU cosmetic ingredient inventory

United States

  • TSCA inventory (USA)
    Status: Active in US commerce

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code Vinyltriethoxysilane is traded under.

HS 2931.90Indicative HS code

Organo-inorganic compounds, other than tetramethyl lead, tetraethyl lead, tributyltin compounds…

World exports in 2024
$3.97B
+5.3% vs 2023, imports $3.93B
2019 to 2024
Top exporters
  1. China28.3%
  2. United States15.6%
  3. Germany15.1%
Top importers
  1. United States14.6%
  2. China13.0%
  3. South Korea8.5%
Reported customs values in USD, not prices.Full trade data

The HS code shown for Vinyltriethoxysilane is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about Vinyltriethoxysilane, based on the data on this page

What is Vinyltriethoxysilane?

Vinyltriethoxysilane is a chemical substance with the molecular formula C8H18O3Si and a molar mass of 190.32 g/mol. Its CAS registry number is 78-08-0. The IUPAC name is ethenyl(triethoxy)silane.

What is the CAS number of Vinyltriethoxysilane?

The CAS registry number of Vinyltriethoxysilane is 78-08-0.

What is the molecular formula and weight of Vinyltriethoxysilane?

The molecular formula of Vinyltriethoxysilane is C8H18O3Si and its molar mass is 190.32 g/mol.

What is Vinyltriethoxysilane used for?

Industrial uses: Intermediate, Adhesion/cohesion promoter, Terminator/Blocker, Stabilizing agent, Chemical reaction regulator, Binder. Consumer uses: Adhesion/cohesion promoter, Hardener.

Is Vinyltriethoxysilane hazardous?

Vinyltriethoxysilane carries the GHS signal word "Warning". Main hazards: flammable liquid and vapour, causes serious eye irritation, may cause respiratory irritation. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Vinyltriethoxysilane?

Vinyltriethoxysilane is usually classified under HS code 293190 (X. ORGANO-INORGANIC COMPOUNDS, HETEROCYCLIC COMPOUNDS, NUCLEIC ACIDS AND THEIR SALTS…). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Vinyltriethoxysilane?

CompoundList lists 37 suppliers of Vinyltriethoxysilane in China, United States, Belgium, Egypt and 4 more. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

Where can I buy Vinyltriethoxysilane in India?

1 supplier in India list Vinyltriethoxysilane on CompoundList. Filter the suppliers list by country and send a request to compare prices, grades and delivery times.

What is the price of Vinyltriethoxysilane?

Suppliers quote Vinyltriethoxysilane on request because prices depend on grade, purity, quantity and destination. A free request on CompoundList gets you several quotes to compare.

Guides for buyers

Practical guides that help when you source, ship or handle Vinyltriethoxysilane

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Data last updated 7 Oct 2026. Details may have changed, please confirm them with the supplier. Report an error on this page
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