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Silanes and silicones

Styryltrimethoxysilane

Also known as Trimethoxy(styryl)silane, trimethoxy-[(E)-2-phenylethenyl]silane, Trimethoxy[(E)-2-phenylvinyl]silane

CAS 70531-02-1Formula C11H16O3SiMolar mass 224.33 g/mol
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Styryltrimethoxysilane chemical structure, C11H16O3Si, CAS 70531-02-1
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
70531-02-1
Formula
C11H16O3Si
Molar mass
224.33 g/mol
HS code
293190
Category
Silanes and silicones

What is Styryltrimethoxysilane?

Plain description, key identifiers and synonyms

Styryltrimethoxysilane is a chemical substance with the molecular formula C11H16O3Si and a molar mass of 224.33 g/mol. Its CAS registry number is 70531-02-1. The IUPAC name is trimethoxy-[(E)-2-phenylethenyl]silane.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
trimethoxy-[(E)-2-phenylethenyl]silane
CAS number
70531-02-1
Molecular formula
C11H16O3Si
InChIKey
JRSJRHKJPOJTMS-MDZDMXLPSA-N
InChI
InChI=1S/C11H16O3Si/c1-12-15(13-2,14-3)10-9-11-7-5-4-6-8-11/h4-10H,1-3H3/b10-9+
Canonical SMILES
CO[Si](C=Cc1ccccc1)(OC)OC
Isomeric SMILES
CO[Si](/C=C/C1=CC=CC=C1)(OC)OC

Synonyms

  • Trimethoxy(styryl)silane
  • trimethoxy-[(E)-2-phenylethenyl]silane
  • Trimethoxy[(E)-2-phenylvinyl]silane

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

No measured properties are recorded for this substance yet. Ask suppliers for a technical data sheet.

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
224.33 g/molcalc.
Exact mass
224.0869 Dacalc.
LogP (octanol/water)
2.12calc.
Topological polar surface area
27.69 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
3calc.
Rotatable bonds
5calc.
Heavy atoms
15calc.
Rings
1calc.
Aromatic rings
1calc.
Fraction sp3 carbons
0.27calc.
Formal charge
0calc.
Stereocentres
0calc.
Lipinski rule of five
Passes (0 violations)calc.

Calculated for screening. Confirm critical figures with the supplier.

Murcko scaffold

The ring system that remains when every side chain is removed

Murcko scaffold of this chemical, c1ccccc1

c1ccccc1

1 ring, 6 atoms, the Benzene ring system.

485,677 other chemicals share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

No GHS hazard classification is recorded for this substance yet. That does not mean it is harmless.

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

Styryltrimethoxysilane suppliers

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Styryltrimethoxysilane 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

Applications are not documented for this substance yet. Suppliers often describe uses on their product pages, linked in the suppliers list above.

Regulatory status

Inventories, regulations and trade controls that list this substance

No regulatory list memberships are recorded for this substance yet. Always check the rules of the importing and exporting country before trade.

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code Styryltrimethoxysilane 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 Styryltrimethoxysilane is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

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

What is Styryltrimethoxysilane?

Styryltrimethoxysilane is a chemical substance with the molecular formula C11H16O3Si and a molar mass of 224.33 g/mol. Its CAS registry number is 70531-02-1. The IUPAC name is trimethoxy-[(E)-2-phenylethenyl]silane.

What is the CAS number of Styryltrimethoxysilane?

The CAS registry number of Styryltrimethoxysilane is 70531-02-1.

What is the molecular formula and weight of Styryltrimethoxysilane?

The molecular formula of Styryltrimethoxysilane is C11H16O3Si and its molar mass is 224.33 g/mol.

Is Styryltrimethoxysilane hazardous?

No GHS hazard classification for Styryltrimethoxysilane is recorded on CompoundList yet. That does not prove it is safe. Always read the supplier safety data sheet.

What is the HS code of Styryltrimethoxysilane?

Styryltrimethoxysilane 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 Styryltrimethoxysilane?

Post a free request on CompoundList and suppliers of Styryltrimethoxysilane will send you quotes. Your contact details stay private until you accept a quote.

What is the price of Styryltrimethoxysilane?

Suppliers quote Styryltrimethoxysilane 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 Styryltrimethoxysilane

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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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