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trimethoxy(2-phenylethyl)silane

Also known as: phenethyltrimethoxysilane, 2-phenylethyltrimethoxysilane, Trimethoxy(2-phenylethyl)silane [contains ca. 25% Trimethoxy(1-phenylethyl)silane], Trimethoxy(phenethyl)silane, Silane, trimethoxy(2-phenylethyl)-, Benzene, [2-(trimethoxysilyl)ethyl]-, Phenethyltrimethoxysilanemixed isomers, Trimethoxy(phenethyl)silane

trimethoxy(2-phenylethyl)silane (CAS 49539-88-0) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C11H18O3Si and a molecular weight of 226.344 g/mol. Key properties include a melting point of <0ºC, a boiling point of 240.1±19.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 98.2±29.0 °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 Nov 3, 2026.

CAS No.
49539-88-0
Jingsj CID
J-40989-2
Molecular Formula
C11H18O3Si
Molecular Weight
226.344 g/mol
Category
Aromatic Hydrocarbons
Last updated
11/3/2026
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Physicochemical Properties

Melting Point<0ºC
Boiling Point240.1±19.0 °C at 760 mmHg
Density1.0±0.1 g/cm3
Flash Point98.2±29.0 °C
Exact Mass226.102524
PSA27.69000
LogP2.33
Vapor Pressure0.1±0.5 mmHg at 25°C
Refractive Index1.474

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 trimethoxy(2-phenylethyl)silane?

The CAS number of trimethoxy(2-phenylethyl)silane is 49539-88-0.

What are the molecular formula and molecular weight of trimethoxy(2-phenylethyl)silane?

trimethoxy(2-phenylethyl)silane has molecular formula C11H18O3Si and molecular weight 226.344 g/mol.

Is trimethoxy(2-phenylethyl)silane hazardous?

trimethoxy(2-phenylethyl)silane 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 trimethoxy(2-phenylethyl)silane?

For trimethoxy(2-phenylethyl)silane, Upstream Products: Trimethoxysilane, Triethoxysilane.

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(2-phenylethyl)silane (CAS 49539-88-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-40989-2 (accessed 2026-11-09).

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