Triethoxyoctylsilane
Also known as: Octyltriethoxysilane, n-Octyltriethoxysilane, Triethoxy-n-octylsilane, Triethoxy(octyl)silane, Triethoxycaprylylsilane, Silquest A-137, Dynasylan OCTEO, DOW CORNING Z-6341, A 137, CO9835, U-222, prosil9202, prosil9234, silquesta137, y9187
Triethoxyoctylsilane (CAS 2943-75-1) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C14H32O3Si and a molecular weight of 276.488 g/mol. Key properties include a melting point of -40ºC, a boiling point of 224.4±8.0 °C at 760 mmHg, a density of 0.9±0.1 g/cm3 and a flash point of 101.3±21.3 °C. It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation, H319 — Causes serious eye irritation and H335 — May cause respiratory irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 2943-75-1
- Jingsj CID
- J-29758-5
- Molecular Formula
- C14H32O3Si
- Molecular Weight
- 276.488 g/mol
- Category
- Aliphatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | -40ºC |
|---|---|
| Boiling Point | 224.4±8.0 °C at 760 mmHg |
| Density | 0.9±0.1 g/cm3 |
| Flash Point | 101.3±21.3 °C |
| Exact Mass | 276.212067 |
| PSA | 27.69000 |
| LogP | 5.45 |
| Vapor Pressure | 0.1±0.4 mmHg at 25°C |
| Refractive Index | 1.428 |
| Additional Property | reacts |
GHS Safety & Compliance
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
Activity & Biological Data
| Additional Information | [1]. Warheit DB, et al. Pulmonary toxicity studies in rats with triethoxyoctylsilane (OTES)-coated, pigment-grade titanium dioxide particles: bridging studies to predict inhalation hazard. Exp Lung Res. 2003;29(8):593-606. [2]. Chen C, et al. Surface modification of aqueous miscible organic layered double hydroxides (AMO-LDHs). Dalton Trans. 2020;49(25):8498-8503. |
|---|
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 Triethoxyoctylsilane?
The CAS number of Triethoxyoctylsilane is 2943-75-1.
What are the molecular formula and molecular weight of Triethoxyoctylsilane?
Triethoxyoctylsilane has molecular formula C14H32O3Si and molecular weight 276.488 g/mol.
Is Triethoxyoctylsilane hazardous?
Triethoxyoctylsilane has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.
What are the upstream and downstream products of Triethoxyoctylsilane?
For Triethoxyoctylsilane, Upstream Products: octene, Triethoxysilane, Triethylsilanol; Downstream Products: 1-Octanol, Octylsilane, 1-Bromooctane.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Triethoxyoctylsilane (CAS 2943-75-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-29758-5 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.