Hexakis[(2H3)methyl]disiloxane

六甲基二硅氧烷-D18

Also known as: Hexamethyl-d18-disiloxane, Disiloxane, 1,1,1,3,3,3-hexa(methyl-d)-, hexakis-trideuteriomethyl-disiloxane, <2H18>Hexamethyldisiloxane, Hexakis[(H)methyl]disiloxane

Hexakis[(2H3)methyl]disiloxane (CAS 19108-55-5) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C6D18OSi2 and a molecular weight of 180.488 g/mol. It is also known as Hexamethyl-d18-disiloxane, Disiloxane, 1,1,1,3,3,3-hexa(methyl-d)- and hexakis-trideuteriomethyl-disiloxane. Key properties include a boiling point of 100.9±8.0 °C at 760 mmHg, a density of 0.8±0.1 g/cm3 and a flash point of 7.7±18.8 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
19108-55-5
Jingsj CID
J-1020023-8
Molecular Formula
C6D18OSi2
Chinese Name
六甲基二硅氧烷-D18
Molecular Weight
180.488 g/mol
Category
Aliphatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point100.9±8.0 °C at 760 mmHg
Density0.8±0.1 g/cm3
Flash Point7.7±18.8 °C

Frequently Asked Questions

What is the CAS number of Hexakis[(2H3)methyl]disiloxane?

The CAS number of Hexakis[(2H3)methyl]disiloxane is 19108-55-5.

What are the molecular formula and molecular weight of Hexakis[(2H3)methyl]disiloxane?

Hexakis[(2H3)methyl]disiloxane has molecular formula C6D18OSi2 and molecular weight 180.488 g/mol.

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

Last updated:

How to cite: Jingsj. "Hexakis[(2H3)methyl]disiloxane (CAS 19108-55-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1020023-8 (accessed 2026-10-25).

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