1,3-Diphenyl-1,3-dimethyldisiloxane

1,3-二苯基-1,3-二甲基二硅氧烷

Also known as: 2,4-Diphenyl-3-oxa-2,4-disilapentane, Diphenyldimethyldisiloxane, 1,3-Dimethyl-1,3-diphenyldisiloxane, Dimethyl-diphenylsiloxane, bis(phenyl methyl hydrido)disiloxane

1,3-Diphenyl-1,3-dimethyldisiloxane (CAS 6689-22-1) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C14H18OSi2 and a molecular weight of 258.46300 g/mol. It is also known as 2,4-Diphenyl-3-oxa-2,4-disilapentane, Diphenyldimethyldisiloxane and 1,3-Dimethyl-1,3-diphenyldisiloxane. Key properties include a boiling point of 120ºC (2 torr) and a density of 1.09. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
6689-22-1
Jingsj CID
J-1135974-0
Molecular Formula
C14H18OSi2
Chinese Name
1,3-二苯基-1,3-二甲基二硅氧烷
Molecular Weight
258.46300 g/mol
Category
Aromatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point120ºC (2 torr)
Density1.09

Frequently Asked Questions

What is the CAS number of 1,3-Diphenyl-1,3-dimethyldisiloxane?

The CAS number of 1,3-Diphenyl-1,3-dimethyldisiloxane is 6689-22-1.

What are the molecular formula and molecular weight of 1,3-Diphenyl-1,3-dimethyldisiloxane?

1,3-Diphenyl-1,3-dimethyldisiloxane has molecular formula C14H18OSi2 and molecular weight 258.46300 g/mol.

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

Last updated:

How to cite: Jingsj. "1,3-Diphenyl-1,3-dimethyldisiloxane (CAS 6689-22-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1135974-0 (accessed 2026-10-22).

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