1,1,3,3,5,5,7,7,9,9-Decamethylpentasiloxane
Also known as: Pentasiloxane, 1,1,3,3,5,5,7,7,9,9-decamethyl-, 1,9-Dihydrogendecamethylpentasiloxane, DMPS, DK965, DKFELEX0258, DKSI148, DKSI205, HMD3MH, 1,9-Dihydro-decamethyl-pentasiloxane
1,1,3,3,5,5,7,7,9,9-Decamethylpentasiloxane (CAS 995-83-5) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C10H30O4Si5 and a molecular weight of 356.786 g/mol. Key properties include a boiling point of 257.1±23.0 °C at 760 mmHg and a flash point of 109.3±22.6 °C. No supplier offers are currently listed; request a quote. Record last updated Nov 2, 2026.
- CAS No.
- 995-83-5
- Jingsj CID
- J-979024-1
- Molecular Formula
- C10H30O4Si5
- Molecular Weight
- 356.786 g/mol
- Category
- Aliphatic Hydrocarbons
- Last updated
- 11/2/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 257.1±23.0 °C at 760 mmHg |
|---|---|
| Flash Point | 109.3±22.6 °C |
| Exact Mass | 356.114685 |
| PSA | 36.92000 |
| LogP | 9.48 |
| Vapor Pressure | 0.0±0.5 mmHg at 25°C |
Frequently Asked Questions
What is the CAS number of 1,1,3,3,5,5,7,7,9,9-Decamethylpentasiloxane?
The CAS number of 1,1,3,3,5,5,7,7,9,9-Decamethylpentasiloxane is 995-83-5.
What are the molecular formula and molecular weight of 1,1,3,3,5,5,7,7,9,9-Decamethylpentasiloxane?
1,1,3,3,5,5,7,7,9,9-Decamethylpentasiloxane has molecular formula C10H30O4Si5 and molecular weight 356.786 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. "1,1,3,3,5,5,7,7,9,9-Decamethylpentasiloxane (CAS 995-83-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-979024-1 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.