Dodecamethylcyclohexasiloxane
Also known as: Cyclohexasiloxane, 2,2,4,4,6,6,8,8,10,10,12,12-dodecamethyl-, 2,2,4,4,6,6,8,8,10,10,12,12-Dodecamethyl-1,3,5,7,9,11-hexaoxa-2,4,6,8,10,12-hexasilacyclododecane, 2,2,4,4,6,6,8,8,10,10,12,12-Dodecamethyl-2,4,6,8,10,12-hexasila-1,3,5,7,9,11-hexaoxacyclododecane, Dodecamethylcyclododecanehexasiloxane, Dodecamethyl-1,3,5,7,9,11-hexaoxa-2,4,6,8,10,12-hexasilacyclododecane, Dow Corning 246, Dow Corning 246 Fluid, SH 246
Dodecamethylcyclohexasiloxane (CAS 540-97-6) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C12H36O6Si6 and a molecular weight of 444.924 g/mol. Key properties include a melting point of -3°C, a boiling point of 245.0±0.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 124.4±23.0 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 540-97-6
- Jingsj CID
- J-29701-9
- Molecular Formula
- C12H36O6Si6
- Molecular Weight
- 444.924 g/mol
- Category
- Aliphatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | -3°C |
|---|---|
| Boiling Point | 245.0±0.0 °C at 760 mmHg |
| Density | 1.0±0.1 g/cm3 |
| Flash Point | 124.4±23.0 °C |
| Exact Mass | 444.112732 |
| PSA | 55.38000 |
| LogP | 4.31040 |
| Vapor Pressure | 0.0±0.4 mmHg at 25°C |
| Refractive Index | 1.431 |
Frequently Asked Questions
What is the CAS number of Dodecamethylcyclohexasiloxane?
The CAS number of Dodecamethylcyclohexasiloxane is 540-97-6.
What are the molecular formula and molecular weight of Dodecamethylcyclohexasiloxane?
Dodecamethylcyclohexasiloxane has molecular formula C12H36O6Si6 and molecular weight 444.924 g/mol.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Dodecamethylcyclohexasiloxane (CAS 540-97-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-29701-9 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.