Tris(trimethylsilyl)silane
三(三甲基硅基)硅烷
Also known as: TTMSS, 1,1,1,3,3,3-Hexamethyl-2-(trimethylsilyl)trisilane, Trisilane, 1,1,1,3,3,3-hexamethyl-2-(trimethylsilyl)-, Tri(trimethylsilyl)silane, Tris(trimethylsilyl)silane (stabilized with TBBP)
Tris(trimethylsilyl)silane (CAS 1873-77-4) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C9H28Si4 and a molecular weight of 248.661 g/mol. It is also known as TTMSS, 1,1,1,3,3,3-Hexamethyl-2-(trimethylsilyl)trisilane and Trisilane, 1,1,1,3,3,3-hexamethyl-2-(trimethylsilyl)-. Key properties include a boiling point of 213.2±0.0 °C at 760 mmHg, a density of 0.806 g/mL at 25 °C(lit.) and a flash point of 77.2±22.6 °C. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 1873-77-4
- Jingsj CID
- J-1315-0
- Molecular Formula
- C9H28Si4
- Chinese Name
- 三(三甲基硅基)硅烷
- Molecular Weight
- 248.661 g/mol
- Category
- Aliphatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 213.2±0.0 °C at 760 mmHg |
|---|---|
| Density | 0.806 g/mL at 25 °C(lit.) |
| Flash Point | 77.2±22.6 °C |
GHS Safety & Compliance
Frequently Asked Questions
What is the CAS number of Tris(trimethylsilyl)silane?
The CAS number of Tris(trimethylsilyl)silane is 1873-77-4.
What are the molecular formula and molecular weight of Tris(trimethylsilyl)silane?
Tris(trimethylsilyl)silane has molecular formula C9H28Si4 and molecular weight 248.661 g/mol.
Is Tris(trimethylsilyl)silane hazardous?
Tris(trimethylsilyl)silane has GHS signal word Warning.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Tris(trimethylsilyl)silane (CAS 1873-77-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1315-0 (accessed 2026-10-22).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.