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Silanes and silicones

Triethylpropoxysilane

Also known as Propyl triethylsilyl ether, triethyl(propoxy)silane, triethylpropyloxysilane

CAS 17841-44-0Formula C9H22OSiMolar mass 174.36 g/mol
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Triethylpropoxysilane chemical structure, C9H22OSi, CAS 17841-44-0
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
17841-44-0
Formula
C9H22OSi
Molar mass
174.36 g/mol
HS code
293190
Category
Silanes and silicones

What is Triethylpropoxysilane?

Plain description, key identifiers and synonyms

Triethylpropoxysilane is a chemical substance with the molecular formula C9H22OSi and a molar mass of 174.36 g/mol. Its CAS registry number is 17841-44-0. The IUPAC name is triethyl(propoxy)silane.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
triethyl(propoxy)silane
CAS number
17841-44-0 CAS number cross-checked
Molecular formula
C9H22OSi
InChIKey
RXJWOBGGPLEFEE-UHFFFAOYSA-N
InChI
InChI=1S/C9H22OSi/c1-5-9-10-11(6-2,7-3)8-4/h5-9H2,1-4H3
SMILES (canonical and isomeric)
CCCO[Si](CC)(CC)CC

Synonyms

  • Propyl triethylsilyl ether
  • triethyl(propoxy)silane
  • triethylpropyloxysilane
  • Propyloxytriethylsilane
  • triethyl-propoxy-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
174.36 g/molcalc.
Exact mass
174.144 Dacalc.
LogP (octanol/water)
3.42calc.
Topological polar surface area
9.23 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
1calc.
Rotatable bonds
6calc.
Heavy atoms
11calc.
Rings
0calc.
Aromatic rings
0calc.
Fraction sp3 carbons
1calc.
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

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.

Triethylpropoxysilane suppliers

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Triethylpropoxysilane price

Indicative price range per kg from live supplier offers

No published prices right now

Suppliers quote this chemical on request. Send one free request and compare quotes side by side.

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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 Triethylpropoxysilane 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 Triethylpropoxysilane is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

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

What is Triethylpropoxysilane?

Triethylpropoxysilane is a chemical substance with the molecular formula C9H22OSi and a molar mass of 174.36 g/mol. Its CAS registry number is 17841-44-0. The IUPAC name is triethyl(propoxy)silane.

What is the CAS number of Triethylpropoxysilane?

The CAS registry number of Triethylpropoxysilane is 17841-44-0.

What is the molecular formula and weight of Triethylpropoxysilane?

The molecular formula of Triethylpropoxysilane is C9H22OSi and its molar mass is 174.36 g/mol.

Is Triethylpropoxysilane hazardous?

No GHS hazard classification for Triethylpropoxysilane 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 Triethylpropoxysilane?

Triethylpropoxysilane 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 Triethylpropoxysilane?

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

What is the price of Triethylpropoxysilane?

Suppliers quote Triethylpropoxysilane 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 Triethylpropoxysilane

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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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