1-Methyl-1-(trimethylsilyl)allene

1-甲基-1-三甲基甲硅烷基丙二烯

Also known as: Buta-2,3-Dien-2-Yl(Trimethyl)Silane, 3-(Trimethylsilyl)-1,2-butadiene, Trimethyl(1-methyl-1,2-propadienyl)silane, Silane, trimethyl(1-methyl-1,2-propadien-1-yl)-, 1-trimethylsilyl-1-methyl-propadiene, MFCD01321223

1-Methyl-1-(trimethylsilyl)allene (CAS 74542-82-8) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C7H14Si and a molecular weight of 126.27200 g/mol. It is also known as Buta-2,3-Dien-2-Yl(Trimethyl)Silane, 3-(Trimethylsilyl)-1,2-butadiene and Trimethyl(1-methyl-1,2-propadienyl)silane. Key properties include a boiling point of 111-112ºC(lit.), a density of 0.759 g/mL at 25ºC(lit.) and a flash point of 19 °F. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
74542-82-8
Jingsj CID
J-36649-8
Molecular Formula
C7H14Si
Chinese Name
1-甲基-1-三甲基甲硅烷基丙二烯
Molecular Weight
126.27200 g/mol
Category
Aliphatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point111-112ºC(lit.)
Density0.759 g/mL at 25ºC(lit.)
Flash Point19 °F

Frequently Asked Questions

What is the CAS number of 1-Methyl-1-(trimethylsilyl)allene?

The CAS number of 1-Methyl-1-(trimethylsilyl)allene is 74542-82-8.

What are the molecular formula and molecular weight of 1-Methyl-1-(trimethylsilyl)allene?

1-Methyl-1-(trimethylsilyl)allene has molecular formula C7H14Si and molecular weight 126.27200 g/mol.

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

Last updated:

How to cite: Jingsj. "1-Methyl-1-(trimethylsilyl)allene (CAS 74542-82-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-36649-8 (accessed 2026-10-24).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.