1,1,3,5,5-Pentamethyl-3-phenyltrisiloxane

1,1,3,5,5-五甲基-3-苯基三硅氧烷

Also known as: 1,1,3,5,5-Pentamethyl-3-phenyltrisiloxan, 3-Phenyl-1,1,3,5,5-pentamethyltrisiloxane, [(dimethyl-λ3-silanyl)oxy-methyl-phenylsilyl]oxy-dimethylsilicon, Benzene, [1-[(dimethylsilyl)oxy]-1,3,3-trimethyldisiloxanyl]-

1,1,3,5,5-Pentamethyl-3-phenyltrisiloxane (CAS 17962-34-4) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C11H22O2Si3 and a molecular weight of 270.548 g/mol. It is also known as 1,1,3,5,5-Pentamethyl-3-phenyltrisiloxan, 3-Phenyl-1,1,3,5,5-pentamethyltrisiloxane and [(dimethyl-λ3-silanyl)oxy-methyl-phenylsilyl]oxy-dimethylsilicon. Key properties include a boiling point of 209.4±13.0 °C at 760 mmHg and a flash point of 80.4±19.8 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
17962-34-4
Jingsj CID
J-1028926-8
Molecular Formula
C11H22O2Si3
Chinese Name
1,1,3,5,5-五甲基-3-苯基三硅氧烷
Molecular Weight
270.548 g/mol
Category
Aromatic Hydrocarbons
Last updated
8/21/2026

No offers for this compound yet.

Request a quote

Physicochemical Properties

Boiling Point209.4±13.0 °C at 760 mmHg
Flash Point80.4±19.8 °C

Frequently Asked Questions

What is the CAS number of 1,1,3,5,5-Pentamethyl-3-phenyltrisiloxane?

The CAS number of 1,1,3,5,5-Pentamethyl-3-phenyltrisiloxane is 17962-34-4.

What are the molecular formula and molecular weight of 1,1,3,5,5-Pentamethyl-3-phenyltrisiloxane?

1,1,3,5,5-Pentamethyl-3-phenyltrisiloxane has molecular formula C11H22O2Si3 and molecular weight 270.548 g/mol.

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

Last updated:

How to cite: Jingsj. "1,1,3,5,5-Pentamethyl-3-phenyltrisiloxane (CAS 17962-34-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1028926-8 (accessed 2026-10-25).

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