(Pentamethyldisilyl)acetylene
(五甲基二甲硅烷基)乙炔
Also known as: (Pentamethyldisilyl)acetylene, 1-ethynyl-1,1,2,2,2-pentamethyldisilane, ethynylpentamethyldisilane, ethynyl-dimethyl-trimethylsilylsilane, Disilane, 1-ethynyl-1,1,2,2,2-pentamethyl-, MFCD03427185
(Pentamethyldisilyl)acetylene (CAS 63247-94-9) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C7H16Si2 and a molecular weight of 156.37300 g/mol. It is also known as 1-ethynyl-1,1,2,2,2-pentamethyldisilane, ethynylpentamethyldisilane and ethynyl-dimethyl-trimethylsilylsilane. Key properties include a boiling point of 125ºC(lit.), a density of 0.795 g/mL at 25ºC(lit.) and a flash point of 54 °F. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 63247-94-9
- Jingsj CID
- J-1326419-6
- Molecular Formula
- C7H16Si2
- Chinese Name
- (五甲基二甲硅烷基)乙炔
- Molecular Weight
- 156.37300 g/mol
- Category
- Aliphatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 125ºC(lit.) |
|---|---|
| Density | 0.795 g/mL at 25ºC(lit.) |
| Flash Point | 54 °F |
Frequently Asked Questions
What is the CAS number of (Pentamethyldisilyl)acetylene?
The CAS number of (Pentamethyldisilyl)acetylene is 63247-94-9.
What are the molecular formula and molecular weight of (Pentamethyldisilyl)acetylene?
(Pentamethyldisilyl)acetylene has molecular formula C7H16Si2 and molecular weight 156.37300 g/mol.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "(Pentamethyldisilyl)acetylene (CAS 63247-94-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1326419-6 (accessed 2026-10-25).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.