Hexaphenyldisiloxane
Also known as: Bis(triphenylsilyl)ether, Di(triphenylsilyl) oxide, Disiloxane, hexaphenyl-, Oxybis(triphenylsilane), triphenyl(triphenylsilyloxy)silane, triphenylsilyl ether, hexaphenyl-disiloxan, hexaphenyldisiloxanne
Hexaphenyldisiloxane (CAS 1829-40-9) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C36H30OSi2 and a molecular weight of 534.794 g/mol. Key properties include a melting point of ~225 °C, a boiling point of 568.3±23.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 239.4±23.0 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 1829-40-9
- Jingsj CID
- J-16022-5
- Molecular Formula
- C36H30OSi2
- Molecular Weight
- 534.794 g/mol
- Category
- Aromatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | ~225 °C |
|---|---|
| Boiling Point | 568.3±23.0 °C at 760 mmHg |
| Density | 1.2±0.1 g/cm3 |
| Flash Point | 239.4±23.0 °C |
| Exact Mass | 534.183533 |
| PSA | 9.23000 |
| LogP | 13.47 |
| Vapor Pressure | 0.0±1.5 mmHg at 25°C |
| Refractive Index | 1.652 |
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 Hexaphenyldisiloxane?
The CAS number of Hexaphenyldisiloxane is 1829-40-9.
What are the molecular formula and molecular weight of Hexaphenyldisiloxane?
Hexaphenyldisiloxane has molecular formula C36H30OSi2 and molecular weight 534.794 g/mol.
What are the upstream and downstream products of Hexaphenyldisiloxane?
For Hexaphenyldisiloxane, Upstream Products: Triphenyl Ethoxysilane, Triphenylsilanol, Chlorotriphenylsilane; Downstream Products: Triphenylsilanol, Triphenylsilane, Chlorotriphenylsilane.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Hexaphenyldisiloxane (CAS 1829-40-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-16022-5 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.