Trimethoxy(octyl)silane
Also known as: Octyltrimethoxysilane, n-Octyltrimethoxysilane, Trimethoxyoctylsilane, 1-(Trimethoxysilyl)octane, Trimethoxy-n-octylsilane, Trimethoxycaprylylsilane, Silane, trimethoxyoctyl-, EINECS 221-338-7, MFCD00043053
Trimethoxy(octyl)silane (CAS 3069-40-7) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C11H26O3Si and a molecular weight of 234.408 g/mol. Key properties include a boiling point of 191.5±8.0 °C at 760 mmHg, a density of 0.9±0.1 g/cm3 and a flash point of 102.2±0.0 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 3069-40-7
- Jingsj CID
- J-29756-3
- Molecular Formula
- C11H26O3Si
- Molecular Weight
- 234.408 g/mol
- Category
- Aliphatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 191.5±8.0 °C at 760 mmHg |
|---|---|
| Density | 0.9±0.1 g/cm3 |
| Flash Point | 102.2±0.0 °C |
| Exact Mass | 234.165115 |
| PSA | 27.69000 |
| LogP | 3.86 |
| Vapor Pressure | 0.7±0.4 mmHg at 25°C |
| Refractive Index | 1.419 |
Customs & Trade Information
| HS Code | 2931900090 |
|---|---|
| Summary | 2931900090. other organo-inorganic compounds. VAT:17.0%. Tax rebate rate:13.0%. Supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward). MFN tariff:6.5%. General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of Trimethoxy(octyl)silane?
The CAS number of Trimethoxy(octyl)silane is 3069-40-7.
What are the molecular formula and molecular weight of Trimethoxy(octyl)silane?
Trimethoxy(octyl)silane has molecular formula C11H26O3Si and molecular weight 234.408 g/mol.
What are the upstream and downstream products of Trimethoxy(octyl)silane?
For Trimethoxy(octyl)silane, Upstream Products: Methanol, octene, Octyltrichlorosilane.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Trimethoxy(octyl)silane (CAS 3069-40-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-29756-3 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.