tris(trimethylsiloxy)chlorosilane
三(三甲基硅氧基)氯硅烷
Also known as: Tris(trimethylsiloxy)chlorosilane, Chlorotris(trimethylsiloxy)silane, Tris(trimethylsiloxy)silyl chloride, 3-Chloro-1,1,1,5,5,5-hexamethyl-3-[(trimethylsilyl)oxy]trisiloxane
tris(trimethylsiloxy)chlorosilane (CAS 17905-99-6) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C9H27ClO3Si4 and a molecular weight of 331.104 g/mol. It is also known as Tris(trimethylsiloxy)chlorosilane, Chlorotris(trimethylsiloxy)silane and Tris(trimethylsiloxy)silyl chloride. Key properties include a melting point of <0ºC, a boiling point of 240.9±23.0 °C at 760 mmHg, a density of 0.9±0.1 g/cm3 and a flash point of 83.8±14.7 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 17905-99-6
- Jingsj CID
- J-41011-7
- Molecular Formula
- C9H27ClO3Si4
- Chinese Name
- 三(三甲基硅氧基)氯硅烷
- Molecular Weight
- 331.104 g/mol
- Category
- Aliphatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | <0ºC |
|---|---|
| Boiling Point | 240.9±23.0 °C at 760 mmHg |
| Density | 0.9±0.1 g/cm3 |
| Flash Point | 83.8±14.7 °C |
| Exact Mass | 330.072571 |
| PSA | 27.69000 |
| LogP | 7.53 |
| Vapor Pressure | 0.1±0.5 mmHg at 25°C |
| Refractive Index | 1.420 |
Customs & Trade Information
| HS Code | 2934999090 |
|---|---|
| Summary | 2934999090. other heterocyclic compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0% |
Frequently Asked Questions
What is the CAS number of tris(trimethylsiloxy)chlorosilane?
The CAS number of tris(trimethylsiloxy)chlorosilane is 17905-99-6.
What are the molecular formula and molecular weight of tris(trimethylsiloxy)chlorosilane?
tris(trimethylsiloxy)chlorosilane has molecular formula C9H27ClO3Si4 and molecular weight 331.104 g/mol.
What are the upstream and downstream products of tris(trimethylsiloxy)chlorosilane?
For tris(trimethylsiloxy)chlorosilane, Upstream Products: Tris(trimethylsiloxy)silane; Downstream Products: tris(Trimethylsilyloxy)silanol.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "tris(trimethylsiloxy)chlorosilane (CAS 17905-99-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-41011-7 (accessed 2026-10-28).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.