1-ethyl-5-(trimethylsilyl)-1,3-cyclopentadiene

1-乙基-5-(三甲基硅基)-1,3-环戊二烯

Also known as: 1,3-Cyclopentadiene, 1-ethyl-5-(trimethylsilyl)-, (2-ethylcyclopenta-2,4-dien-1-yl)-trimethylsilane, Ethyl-5-(Trimethylsilyl)-1,3-Cyclopentadiene, 1-ETHYL-5-(TRIMETHYLSILYL)-1,3-CYCLOPENTADIENE

1-ethyl-5-(trimethylsilyl)-1,3-cyclopentadiene (CAS 302912-32-9) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C10H18Si and a molecular weight of 166.33500 g/mol. It is also known as 1,3-Cyclopentadiene, 1-ethyl-5-(trimethylsilyl)-, (2-ethylcyclopenta-2,4-dien-1-yl)-trimethylsilane and Ethyl-5-(Trimethylsilyl)-1,3-Cyclopentadiene. Key properties include a boiling point of 181ºC(lit.), a density of 0.828 g/mL at 25ºC(lit.) and a flash point of 127 °F. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
302912-32-9
Jingsj CID
J-12297-1
Molecular Formula
C10H18Si
Chinese Name
1-乙基-5-(三甲基硅基)-1,3-环戊二烯
Molecular Weight
166.33500 g/mol
Category
Aliphatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point181ºC(lit.)
Density0.828 g/mL at 25ºC(lit.)
Flash Point127 °F

Frequently Asked Questions

What is the CAS number of 1-ethyl-5-(trimethylsilyl)-1,3-cyclopentadiene?

The CAS number of 1-ethyl-5-(trimethylsilyl)-1,3-cyclopentadiene is 302912-32-9.

What are the molecular formula and molecular weight of 1-ethyl-5-(trimethylsilyl)-1,3-cyclopentadiene?

1-ethyl-5-(trimethylsilyl)-1,3-cyclopentadiene has molecular formula C10H18Si and molecular weight 166.33500 g/mol.

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

Last updated:

How to cite: Jingsj. "1-ethyl-5-(trimethylsilyl)-1,3-cyclopentadiene (CAS 302912-32-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-12297-1 (accessed 2026-10-25).

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