Hexaethyldisiloxane
Also known as: 1,1,1,3,3,3-Hexaethyldisiloxane, 1,1,1,3,3,3-Hexaethylpropanedisiloxane, Bis(triethylsilyl) ether, Bis(triethylsilyl) oxide, Disiloxane, 1,1,1,3,3,3-hexaethyl-, Disiloxane, hexaethyl-, triethyl(triethylsilyloxy)silane, triethylsilyl ether, NSC 139841
Hexaethyldisiloxane (CAS 994-49-0) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C12H30OSi2 and a molecular weight of 246.537 g/mol. Key properties include a melting point of -115°C, a boiling point of 234.5±0.0 °C at 760 mmHg, a density of 0.8±0.1 g/cm3 and a flash point of 77.0±18.8 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 994-49-0
- Jingsj CID
- J-41043-5
- Molecular Formula
- C12H30OSi2
- Molecular Weight
- 246.537 g/mol
- Category
- Aliphatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | -115°C |
|---|---|
| Boiling Point | 234.5±0.0 °C at 760 mmHg |
| Density | 0.8±0.1 g/cm3 |
| Flash Point | 77.0±18.8 °C |
| Exact Mass | 246.183517 |
| PSA | 9.23000 |
| LogP | 7.39 |
| Vapor Pressure | 0.1±0.4 mmHg at 25°C |
| Refractive Index | 1.419 |
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 Hexaethyldisiloxane?
The CAS number of Hexaethyldisiloxane is 994-49-0.
What are the molecular formula and molecular weight of Hexaethyldisiloxane?
Hexaethyldisiloxane has molecular formula C12H30OSi2 and molecular weight 246.537 g/mol.
What are the upstream and downstream products of Hexaethyldisiloxane?
For Hexaethyldisiloxane, Upstream Products: Triethylsilane, Carbon dioxide, Triethylsilanol; Downstream Products: Chlorotriethylsilane, Tetraethylsilane, Triethylsilanol.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Hexaethyldisiloxane (CAS 994-49-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-41043-5 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.