Triethoxysilane
Also known as: Silane, triethoxy-, TRIETHOXYSILANE, CT2500, Triethoxysilicane
Triethoxysilane (CAS 998-30-1) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C6H16O3Si and a molecular weight of 164.275 g/mol. Key properties include a melting point of -170°C, a boiling point of 133.5±0.0 °C at 760 mmHg, a density of 0.89 g/mL at 25 °C(lit.) and a flash point of 29.2±18.7 °C. It is classified under GHS with signal word Danger and hazard statements H226 — Flammable liquid and vapour, H314 — Causes severe skin burns and eye damage and H330 — Fatal if inhaled. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 998-30-1
- Jingsj CID
- J-47495-3
- Molecular Formula
- C6H16O3Si
- Molecular Weight
- 164.275 g/mol
- Category
- Aliphatic Hydrocarbons
- Last updated
- 8/21/2026
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Request a quotePhysicochemical Properties
| Melting Point | -170°C |
|---|---|
| Boiling Point | 133.5±0.0 °C at 760 mmHg |
| Density | 0.89 g/mL at 25 °C(lit.) |
| Flash Point | 29.2±18.7 °C |
| Exact Mass | 164.086868 |
| PSA | 27.69000 |
| LogP | 4.70 |
| Vapor Pressure | 10.4±0.2 mmHg at 25°C |
| Refractive Index | n20/D 1.377(lit.) |
GHS Safety & Compliance
- H226 — Flammable liquid and vapour
- H314 — Causes severe skin burns and eye damage
- H330 — Fatal if inhaled
Frequently Asked Questions
What is the CAS number of Triethoxysilane?
The CAS number of Triethoxysilane is 998-30-1.
What are the molecular formula and molecular weight of Triethoxysilane?
Triethoxysilane has molecular formula C6H16O3Si and molecular weight 164.275 g/mol.
Is Triethoxysilane hazardous?
Triethoxysilane has GHS signal word Danger and hazard statements H226 — Flammable liquid and vapour; H314 — Causes severe skin burns and eye damage; H330 — Fatal if inhaled.
What are the upstream and downstream products of Triethoxysilane?
For Triethoxysilane, Upstream Products: Ethanol, Silicon, Trichlorosilane; Downstream Products: trimethoxy(2-phenylethyl)silane, Acetoxymethyltriethoxysilane, Ethyl acetate.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Triethoxysilane (CAS 998-30-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-47495-3 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.