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(2-cyanoethyl)triethoxysilane

Also known as: 3-(Triethoxysilyl)propionitrile, 3-(Triethoxysilyl)propanenitrile, 2-Cyanoethyltriethoxysilane, β-Cyanoethyltriethoxysilane, 3-(Triethoxysilyl)propiononitrile, Propanenitrile, 3-(triethoxysilyl)-, EINECS 213-050-5, MFCD00019851

(2-cyanoethyl)triethoxysilane (CAS 919-31-3) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C9H19NO3Si and a molecular weight of 217.338 g/mol. Key properties include a boiling point of 250.4±13.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 105.3±19.8 °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.
919-31-3
Jingsj CID
J-6743-6
Molecular Formula
C9H19NO3Si
Molecular Weight
217.338 g/mol
Category
Aliphatic Hydrocarbons
Last updated
8/21/2026
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Physicochemical Properties

Boiling Point250.4±13.0 °C at 760 mmHg
Density1.0±0.1 g/cm3
Flash Point105.3±19.8 °C
Exact Mass217.113419
PSA51.48000
LogP1.38
Vapor Pressure0.0±0.5 mmHg at 25°C
Refractive Index1.425

GHS Safety & Compliance

IrritantSignal word: Warning
  • H315 — Causes skin irritation
  • H319 — Causes serious eye irritation
  • H335 — May cause respiratory irritation

Frequently Asked Questions

What is the CAS number of (2-cyanoethyl)triethoxysilane?

The CAS number of (2-cyanoethyl)triethoxysilane is 919-31-3.

What are the molecular formula and molecular weight of (2-cyanoethyl)triethoxysilane?

(2-cyanoethyl)triethoxysilane has molecular formula C9H19NO3Si and molecular weight 217.338 g/mol.

Is (2-cyanoethyl)triethoxysilane hazardous?

(2-cyanoethyl)triethoxysilane 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 (2-cyanoethyl)triethoxysilane?

For (2-cyanoethyl)triethoxysilane, Upstream Products: Ethanol, 2-Cyanoethyltrichlorosilane, Triethoxysilane; Downstream Products: 3-Aminopropyltriethoxysilane.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "(2-cyanoethyl)triethoxysilane (CAS 919-31-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-6743-6 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.