1,1,3,3,5,5,7,7,9,9,11,11-dodecamethylhexasiloxane

十二甲基二氢六硅氧烷

Also known as: Hexasiloxane, 1,1,3,3,5,5,7,7,9,9,11,11-dodecamethyl-, 1,1,2,2,3,3,4,4,5,5,6,6-Dodecamethyl-hexasiloxan, 1,11-Dihydro-dodecamethyl-hexasiloxan, HMD4MH, symm.-Dodekamethyl-hexasiloxan

1,1,3,3,5,5,7,7,9,9,11,11-dodecamethylhexasiloxane (CAS 995-82-4) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C12H38O5Si6 and a molecular weight of 430.940 g/mol. It is also known as Hexasiloxane, 1,1,3,3,5,5,7,7,9,9,11,11-dodecamethyl-, 1,1,2,2,3,3,4,4,5,5,6,6-Dodecamethyl-hexasiloxan and 1,11-Dihydro-dodecamethyl-hexasiloxan. Key properties include a boiling point of 304.1±25.0 °C at 760 mmHg, a density of 0.90 g/ml and a flash point of 137.7±23.2 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
995-82-4
Jingsj CID
J-1322511-5
Molecular Formula
C12H38O5Si6
Chinese Name
十二甲基二氢六硅氧烷
Molecular Weight
430.940 g/mol
Category
Aliphatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point304.1±25.0 °C at 760 mmHg
Density0.90 g/ml
Flash Point137.7±23.2 °C

Frequently Asked Questions

What is the CAS number of 1,1,3,3,5,5,7,7,9,9,11,11-dodecamethylhexasiloxane?

The CAS number of 1,1,3,3,5,5,7,7,9,9,11,11-dodecamethylhexasiloxane is 995-82-4.

What are the molecular formula and molecular weight of 1,1,3,3,5,5,7,7,9,9,11,11-dodecamethylhexasiloxane?

1,1,3,3,5,5,7,7,9,9,11,11-dodecamethylhexasiloxane has molecular formula C12H38O5Si6 and molecular weight 430.940 g/mol.

Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "1,1,3,3,5,5,7,7,9,9,11,11-dodecamethylhexasiloxane (CAS 995-82-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1322511-5 (accessed 2026-10-26).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.