1,1,1,3,3-Pentamethyl-3-octyldisiloxane

1,1,1,3,3-五甲基-3-辛基二硅氧烷

Also known as: N-OCTYLPENTAMETHYLDISILOXANE, Octylpentamethyldisiloxane, Disiloxane, 1,1,1,3,3-pentamethyl-3-octyl-, MFCD01861724

1,1,1,3,3-Pentamethyl-3-octyldisiloxane (CAS 180006-15-9) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C13H32OSi2 and a molecular weight of 260.56400 g/mol. It is also known as N-OCTYLPENTAMETHYLDISILOXANE, Octylpentamethyldisiloxane and Disiloxane, 1,1,1,3,3-pentamethyl-3-octyl-. Key properties include a boiling point of 238.2ºC at 760 mmHg, a density of 0.811g/cm3 and a flash point of 86.7ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
180006-15-9
Jingsj CID
J-22904-7
Molecular Formula
C13H32OSi2
Chinese Name
1,1,1,3,3-五甲基-3-辛基二硅氧烷
Molecular Weight
260.56400 g/mol
Category
Aliphatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point238.2ºC at 760 mmHg
Density0.811g/cm3
Flash Point86.7ºC

Frequently Asked Questions

What is the CAS number of 1,1,1,3,3-Pentamethyl-3-octyldisiloxane?

The CAS number of 1,1,1,3,3-Pentamethyl-3-octyldisiloxane is 180006-15-9.

What are the molecular formula and molecular weight of 1,1,1,3,3-Pentamethyl-3-octyldisiloxane?

1,1,1,3,3-Pentamethyl-3-octyldisiloxane has molecular formula C13H32OSi2 and molecular weight 260.56400 g/mol.

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

Last updated:

How to cite: Jingsj. "1,1,1,3,3-Pentamethyl-3-octyldisiloxane (CAS 180006-15-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-22904-7 (accessed 2026-10-23).

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