Methyltris(trimethylsiloxy)silane
Also known as: Methyl Tris(Trimethylsiloxy)Silane, Methyltris(trimethylsiloxy)silane, 1,1,1,3,5,5,5-Heptamethyl-3-[(trimethylsilyl)oxy]trisiloxane, 1,1,1,3,5,5,5-Heptamethyl-3-(trimethylsiloxy)trisiloxane, Trimethyl-[methyl-bis(trimethylsilyloxy)silyl]oxysilane, Tris-trimethylsiloxy-methyl-silan, 3-Trimethylsiloxy-1,1,1,3,5,5,5-heptamethyl-trisiloxan, MFCD00040007, EINECS 241-867-7, UNII-S73ZQI0GXM
Methyltris(trimethylsiloxy)silane (CAS 17928-28-8) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C10H30O3Si4 and a molecular weight of 310.685 g/mol. Key properties include a melting point of -76°C, a boiling point of 235.4±23.0 °C at 760 mmHg, a density of 0.9±0.1 g/cm3 and a flash point of 88.1±23.0 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 17928-28-8
- Jingsj CID
- J-1994153-8
- Molecular Formula
- C10H30O3Si4
- Molecular Weight
- 310.685 g/mol
- Category
- Aliphatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | -76°C |
|---|---|
| Boiling Point | 235.4±23.0 °C at 760 mmHg |
| Density | 0.9±0.1 g/cm3 |
| Flash Point | 88.1±23.0 °C |
| Exact Mass | 310.127197 |
| PSA | 27.69000 |
| LogP | 6.52 |
| Vapor Pressure | 0.1±0.4 mmHg at 25°C |
| Refractive Index | 1.412 |
| Additional Property | <0.1 g/100 mL at 20 ºC |
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 Methyltris(trimethylsiloxy)silane?
The CAS number of Methyltris(trimethylsiloxy)silane is 17928-28-8.
What are the molecular formula and molecular weight of Methyltris(trimethylsiloxy)silane?
Methyltris(trimethylsiloxy)silane has molecular formula C10H30O3Si4 and molecular weight 310.685 g/mol.
What are the upstream and downstream products of Methyltris(trimethylsiloxy)silane?
For Methyltris(trimethylsiloxy)silane, Upstream Products: Methyltrimethoxysilane, Hexamethyldisiloxane, Chlorotrimethylsilane; Downstream Products: Trimethylsilanol, Trimethylfluorosilane, Trifluoro(methyl)silane.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Methyltris(trimethylsiloxy)silane (CAS 17928-28-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1994153-8 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.