1,1,1,3,5,7,7,7-Octamethyl-3,5-bis(trimethylsiloxy)tetrasiloxane
1,1,1,3,5,7,7,7-八甲基-3,5-双(三甲基硅氧基)四硅氧烷
Also known as: 1,1,1,3,5,7,7,7-Octamethyl-3,5-bis(trimethylsilanyloxy)tetrasiloxane, 1,1,1,3,5,7,7,7-Octamethyl-3,5-bis(trimethylsilyloxy)tetrasiloxane, Tetrasiloxane, 1,1,1,3,5,7,7,7-octamethyl-3,5-bis[(trimethylsilyl)oxy]-, trimethyl-[methyl-[methyl-bis(trimethylsilyloxy)silyl]oxy-trimethylsilyloxysilyl]oxysilane, 3,5-Bis-trimethylsiloxy-octamethyl-tetrasiloxan, MFCD04039928
1,1,1,3,5,7,7,7-Octamethyl-3,5-bis(trimethylsiloxy)tetrasiloxane (CAS 2003-92-1) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C14H42O5Si6 and a molecular weight of 458.99300 g/mol. It is also known as 1,1,1,3,5,7,7,7-Octamethyl-3,5-bis(trimethylsilanyloxy)tetrasiloxane, 1,1,1,3,5,7,7,7-Octamethyl-3,5-bis(trimethylsilyloxy)tetrasiloxane and Tetrasiloxane, 1,1,1,3,5,7,7,7-octamethyl-3,5-bis[(trimethylsilyl)oxy]-. Key properties include a boiling point of 121ºC10 mm Hg(lit.), a density of 0.885 g/mL at 25ºC(lit.) and a flash point of >221 °F. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 2003-92-1
- Jingsj CID
- J-519-5
- Molecular Formula
- C14H42O5Si6
- Chinese Name
- 1,1,1,3,5,7,7,7-八甲基-3,5-双(三甲基硅氧基)四硅氧烷
- Molecular Weight
- 458.99300 g/mol
- Category
- Aliphatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 121ºC10 mm Hg(lit.) |
|---|---|
| Density | 0.885 g/mL at 25ºC(lit.) |
| Flash Point | >221 °F |
Frequently Asked Questions
What is the CAS number of 1,1,1,3,5,7,7,7-Octamethyl-3,5-bis(trimethylsiloxy)tetrasiloxane?
The CAS number of 1,1,1,3,5,7,7,7-Octamethyl-3,5-bis(trimethylsiloxy)tetrasiloxane is 2003-92-1.
What are the molecular formula and molecular weight of 1,1,1,3,5,7,7,7-Octamethyl-3,5-bis(trimethylsiloxy)tetrasiloxane?
1,1,1,3,5,7,7,7-Octamethyl-3,5-bis(trimethylsiloxy)tetrasiloxane has molecular formula C14H42O5Si6 and molecular weight 458.99300 g/mol.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "1,1,1,3,5,7,7,7-Octamethyl-3,5-bis(trimethylsiloxy)tetrasiloxane (CAS 2003-92-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-519-5 (accessed 2026-10-23).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.