Tetrakis(trimethylsiloxy)silane
Also known as: Tetrakis(trimethylsilyl) orthosilicate, Tetrakis(trimethylsilyl) silicate, 1,1,1,5,5,5-Hexamethyl-3,3-bis(trimethylsiloxy)trisiloxane, 1,1,1,5,5,5-Hexamethyl-3,3-bis[(trimethylsilyl)oxy]trisiloxane, 3,3-Bis-trimethylsiloxy-hexamethyltrisiloxane, Silicic acid, tetrakis(trimethylsilyl) ester, MFCD00051587, EINECS 222-613-4
Tetrakis(trimethylsiloxy)silane (CAS 3555-47-3) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C12H36O4Si5 and a molecular weight of 384.839 g/mol. Key properties include a melting point of -60ºC, a boiling point of 284.4±23.0 °C at 760 mmHg, a density of 0.9±0.1 g/cm3 and a flash point of 117.4±23.0 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 3555-47-3
- Jingsj CID
- J-40940-5
- Molecular Formula
- C12H36O4Si5
- Molecular Weight
- 384.839 g/mol
- Category
- Aliphatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | -60ºC |
|---|---|
| Boiling Point | 284.4±23.0 °C at 760 mmHg |
| Density | 0.9±0.1 g/cm3 |
| Flash Point | 117.4±23.0 °C |
| Exact Mass | 384.145996 |
| PSA | 36.92000 |
| LogP | 8.31 |
| Appearance | liquid |
| Vapor Pressure | 0.0±0.6 mmHg at 25°C |
| Refractive Index | 1.417 |
Customs & Trade Information
| HS Code | 2931900090 |
|---|---|
| Summary | 2931900090. other organo-inorganic compounds. VAT:17.0%. Tax rebate rate:13.0%. Supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward). MFN tariff:6.5%. General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of Tetrakis(trimethylsiloxy)silane?
The CAS number of Tetrakis(trimethylsiloxy)silane is 3555-47-3.
What are the molecular formula and molecular weight of Tetrakis(trimethylsiloxy)silane?
Tetrakis(trimethylsiloxy)silane has molecular formula C12H36O4Si5 and molecular weight 384.839 g/mol.
What are the upstream and downstream products of Tetrakis(trimethylsiloxy)silane?
For Tetrakis(trimethylsiloxy)silane, Upstream Products: Tetraethyl orthosilicate, Hexamethyldisiloxane, Ethanol; Downstream Products: Trimethylfluorosilane, Tetramethylsilane.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Tetrakis(trimethylsiloxy)silane (CAS 3555-47-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-40940-5 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.