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Allyltriphenylsilane

Also known as: (2-Propenyl)triphenylsilane, 2-Propenyltriphenylsilane, 3-(Triphenylsilyl)-1-propene, ALLYLTRIPHENYLSILANE, Alllyltriphenylsilane, Allytriphenylsilane, Benzene, 1,1',1''-(2-propen-1-ylsilylidyne)tris-, Triphenyl(2-propenyl)silane, Triphenylallylsilane, triphenyl(allyl)silane, triphenyl(prop-2-enyl)silane, triphenyl-2-propenylsilane

Allyltriphenylsilane (CAS 18752-21-1) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C21H20Si and a molecular weight of 300.469 g/mol. Key properties include a melting point of 87-90ºC(lit.), a boiling point of 380.4±25.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 170.2±16.7 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
18752-21-1
Jingsj CID
J-1091297-7
Molecular Formula
C21H20Si
Molecular Weight
300.469 g/mol
Category
Aromatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Melting Point87-90ºC(lit.)
Boiling Point380.4±25.0 °C at 760 mmHg
Density1.0±0.1 g/cm3
Flash Point170.2±16.7 °C
Exact Mass300.133423
LogP7.25
Vapor Pressure0.0±0.8 mmHg at 25°C
Refractive Index1.595

Frequently Asked Questions

What is the CAS number of Allyltriphenylsilane?

The CAS number of Allyltriphenylsilane is 18752-21-1.

What are the molecular formula and molecular weight of Allyltriphenylsilane?

Allyltriphenylsilane has molecular formula C21H20Si and molecular weight 300.469 g/mol.

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

Last updated:

How to cite: Jingsj. "Allyltriphenylsilane (CAS 18752-21-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1091297-7 (accessed 2026-11-09).

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