Bis(trimethylsilyl)acetylene
双(三甲基硅基)乙炔
Also known as: 1,2-Bis(trimethylsilyl)acetylene, 1,2-Bis(trimethylsilyl)ethyne, BTMSA, BSTMA, 2,5-Disilahex-3-yne, 2,2,5,5-tetramethyl-, Silane, 1,2-ethynediylbis[trimethyl-, ethyne-1,2-diylbis(trimethylsilane), trimethyl(2-trimethylsilylethynyl)silane
Bis(trimethylsilyl)acetylene (CAS 14630-40-1) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C8H18Si2 and a molecular weight of 170.400 g/mol. It is also known as 1,2-Bis(trimethylsilyl)acetylene, 1,2-Bis(trimethylsilyl)ethyne and BTMSA. Key properties include a melting point of 21-24 °C(lit.), a boiling point of 134.6±8.0 °C at 760 mmHg, a density of 0.8±0.1 g/cm3 and a flash point of 17.1±11.5 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 14630-40-1
- Jingsj CID
- J-47838-0
- Molecular Formula
- C8H18Si2
- Chinese Name
- 双(三甲基硅基)乙炔
- Molecular Weight
- 170.400 g/mol
- Category
- Aliphatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 21-24 °C(lit.) |
|---|---|
| Boiling Point | 134.6±8.0 °C at 760 mmHg |
| Density | 0.8±0.1 g/cm3 |
| Flash Point | 17.1±11.5 °C |
Frequently Asked Questions
What is the CAS number of Bis(trimethylsilyl)acetylene?
The CAS number of Bis(trimethylsilyl)acetylene is 14630-40-1.
What are the molecular formula and molecular weight of Bis(trimethylsilyl)acetylene?
Bis(trimethylsilyl)acetylene has molecular formula C8H18Si2 and molecular weight 170.400 g/mol.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Bis(trimethylsilyl)acetylene (CAS 14630-40-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-47838-0 (accessed 2026-10-22).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.