CompoundList
Sign in
Silanes and silicones

Hexyltrimethoxysilane

Also known as n-hexyltrimethoxysilane, Silane, hexyltrimethoxy-, AY 43-206M

CAS 3069-19-0Formula C9H22O3SiMolar mass 206.36 g/molEC 221-331-9
GHS signal word: Warning. Pictograms: Harmful or irritant 5 suppliers listed
Get quotes Compare 5 suppliers
Hexyltrimethoxysilane chemical structure, C9H22O3Si, CAS 3069-19-0
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
3069-19-0
Formula
C9H22O3Si
Molar mass
206.36 g/mol
EC number
221-331-9
HS code
293190
Category
Silanes and silicones

What is Hexyltrimethoxysilane?

Plain description, key identifiers and synonyms

Hexyltrimethoxysilane is a chemical substance with the molecular formula C9H22O3Si and a molar mass of 206.36 g/mol. Its CAS registry number is 3069-19-0. The IUPAC name is hexyl(trimethoxy)silane.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
hexyl(trimethoxy)silane
CAS number
3069-19-0 CAS number cross-checkedOther or deprecated CAS: 89885-27-8
EC number
221-331-9
Molecular formula
C9H22O3Si
UNII
9AUI936HIC
MDL number
MFCD00039801
INCI name
HEXYLTRIMETHOXYSILANE
InChIKey
CZWLNMOIEMTDJY-UHFFFAOYSA-N
InChI
InChI=1S/C9H22O3Si/c1-5-6-7-8-9-13(10-2,11-3)12-4/h5-9H2,1-4H3
SMILES (canonical and isomeric)
CCCCCC[Si](OC)(OC)OC

Synonyms

  • n-hexyltrimethoxysilane
  • Silane, hexyltrimethoxy-
  • AY 43-206M
  • hexyl(trimethoxy)silane
  • hexyl-trimethoxysilane
  • Hexyltri(methoxy)silane
  • Czwlnmoiemtdjy-uhfffaoysa-

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
206.36 g/molcalc.
Exact mass
206.1338 Dacalc.
LogP (octanol/water)
2.44calc.
Topological polar surface area
27.69 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
3calc.
Rotatable bonds
8calc.
Heavy atoms
13calc.
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

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

Hazard statements

  • H315Causes skin irritation.
  • H319Causes serious eye irritation.
Precautionary statements (9)
  • P264Wash skin thoroughly after handling.
  • P264 + P265Wash skin thoroughly after handling. Do not touch eyes.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P302 + P352If on skin: Wash with plenty of water.
  • P305 + P351 + P338If in eyes: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
  • P321Specific treatment (see supplemental first aid instructions on the label).
  • P332 + P317If skin irritation occurs: Get medical help.
  • P337 + P317If eye irritation persists: Get medical help.
  • P362 + P364Take off contaminated clothing. And wash it before reuse.

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

Hexyltrimethoxysilane suppliers

Sponsored listings first, then the documented ranking: membership, verification, replies, completeness, freshness and ratings

All 5 suppliers
5 of 5 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

5 suppliers in 3 countries

Send one request to many suppliers

Choose up to 10 suppliers or let us match your request. Compare quotes side by side, free.

Choose suppliersPost a request

Hexyltrimethoxysilane 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.

Get latest price

Uses and applications

What the substance is used for, by industry and function

Cosmetic ingredient, INCI name HEXYLTRIMETHOXYSILANE(skin conditioning)

Functional uses

  • Adhesion/cohesion promoter
  • Chemical reaction regulator
  • Softener and conditioner
  • Surface modifier
  • Wetting agent (non-aqueous)

Cosmetic functions

  • Skin conditioning

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

Frequently asked questions

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

What is Hexyltrimethoxysilane?

Hexyltrimethoxysilane is a chemical substance with the molecular formula C9H22O3Si and a molar mass of 206.36 g/mol. Its CAS registry number is 3069-19-0. The IUPAC name is hexyl(trimethoxy)silane.

What is the CAS number of Hexyltrimethoxysilane?

The CAS registry number of Hexyltrimethoxysilane is 3069-19-0. Other or deprecated CAS numbers: 89885-27-8.

What is the molecular formula and weight of Hexyltrimethoxysilane?

The molecular formula of Hexyltrimethoxysilane is C9H22O3Si and its molar mass is 206.36 g/mol.

What is Hexyltrimethoxysilane used for?

Known uses and roles of Hexyltrimethoxysilane include skin conditioning agents in cosmetics and personal care, waterproofing agents in construction chemicals, skin conditioning, adhesion/cohesion promoter, chemical reaction regulator and 3 more.

Is Hexyltrimethoxysilane hazardous?

Hexyltrimethoxysilane carries the GHS signal word "Warning". Main hazards: causes skin irritation, causes serious eye irritation. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Hexyltrimethoxysilane?

Hexyltrimethoxysilane 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 Hexyltrimethoxysilane?

CompoundList lists 5 suppliers of Hexyltrimethoxysilane in China, United States and United Kingdom. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

What is the price of Hexyltrimethoxysilane?

Suppliers quote Hexyltrimethoxysilane 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 Hexyltrimethoxysilane

Get quotes for Hexyltrimethoxysilane

Post one free request with your grade, quantity and destination. Matching suppliers send quotes you can compare side by side.
Post a request Sell Hexyltrimethoxysilane
Data last updated 7 Oct 2026. Details may have changed, please confirm them with the supplier. Report an error on this page
Embed this structure on your websiteShow code

Paste this code into your page to show the 2D structure of Hexyltrimethoxysilane with a 3D view, its CAS number where known and a link back to this page. Free to use with the link kept.

<iframe src="https://www.compoundlist.com/embed/structure/hexyltrimethoxysilane-3069-19-0" title="Hexyltrimethoxysilane structure on CompoundList" width="360" height="420" style="border:1px solid #E7E2DA;border-radius:12px;max-width:100%" loading="lazy" referrerpolicy="strict-origin-when-cross-origin"></iframe>
Preview the embed

Explore more in Silanes and silicones or HS code 293190

5 suppliers
Free quotes, contact stays private
Get quotes