HEPTAMETHYL CYCLOTETRASILOXANE
Also known as: Cyclotetrasiloxane, 2,2,4,4,6,6,8-heptamethyl-, 2,2,4,4,6,6,8-Heptamethyl-1,3,5,7,2,4,6,8-tetraoxatetrasilocane, 1,3,3,5,5,7,7-Heptamethylcyclotetrasiloxane, Heptamethylcyclotetrasiloxane, HEPTAMETHYLCYCLOTETRASILOXANE
HEPTAMETHYL CYCLOTETRASILOXANE (CAS 15721-05-8) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C7H22O4Si4 and a molecular weight of 282.589 g/mol. Key properties include a melting point of -27ºC, a boiling point of 174.3±23.0 °C at 760 mmHg, a density of 0.958 g/cm3 and a flash point of 59.2±22.6 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 15721-05-8
- Jingsj CID
- J-1101114-6
- Molecular Formula
- C7H22O4Si4
- Molecular Weight
- 282.589 g/mol
- Category
- Aliphatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | -27ºC |
|---|---|
| Boiling Point | 174.3±23.0 °C at 760 mmHg |
| Density | 0.958 g/cm3 |
| Flash Point | 59.2±22.6 °C |
| Exact Mass | 282.059509 |
| PSA | 36.92000 |
| LogP | 2.02210 |
| Vapor Pressure | 1.6±0.3 mmHg at 25°C |
| Refractive Index | 1.3965 |
Customs & Trade Information
| HS Code | 2901100000 |
|---|---|
| Summary | 2901100000 saturated acyclic hydrocarbons。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:2.0%。General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of HEPTAMETHYL CYCLOTETRASILOXANE?
The CAS number of HEPTAMETHYL CYCLOTETRASILOXANE is 15721-05-8.
What are the molecular formula and molecular weight of HEPTAMETHYL CYCLOTETRASILOXANE?
HEPTAMETHYL CYCLOTETRASILOXANE has molecular formula C7H22O4Si4 and molecular weight 282.589 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. "HEPTAMETHYL CYCLOTETRASILOXANE (CAS 15721-05-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1101114-6 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.