Simethicone

西甲硅油

Also known as: Polydimethylsiloxane, Poly(dimethylsiloxane), α-(Trimethylsilyl)-ω-methylpoly[oxy(dimethylsilylene)] mixture with silicon dioxide, Viscosity standard, Nominally 100cSt at 40°C and 16.8cSt at 100°C, Viscosity standard, Nominally 10cSt at 40 and 2.7cSt at 100, Viscosity standard, Nominally 120cSt at 40 and 20cSt at 100, Viscosity standard, Nominally 30cSt at 40°C and 5.3cSt at 100°C, Viscosity standard, Nominally 360cSt at 40°C and 42cSt at 100°C, Viscosity standard, Nominally 500cSt at 40 and 52cSt at 100, Viscosity standard, Nominally 50cSt at 40 and 7.3cSt at 100

Simethicone (CAS 8050-81-5) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C6H18O4Si3 and a molecular weight of 238.46100 g/mol. It is also known as Polydimethylsiloxane, Poly(dimethylsiloxane) and α-(Trimethylsilyl)-ω-methylpoly[oxy(dimethylsilylene)] mixture with silicon dioxide. Key properties include a boiling point of 96.5ºC at 760 mmHg, a density of 1 g/mL at 20ºC and a flash point of 6.3ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
8050-81-5
Jingsj CID
J-47096-6
Molecular Formula
C6H18O4Si3
Chinese Name
西甲硅油
Molecular Weight
238.46100 g/mol
Category
Organic Compounds
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point96.5ºC at 760 mmHg
Density1 g/mL at 20ºC
Flash Point6.3ºC

Frequently Asked Questions

What is the CAS number of Simethicone?

The CAS number of Simethicone is 8050-81-5.

What are the molecular formula and molecular weight of Simethicone?

Simethicone has molecular formula C6H18O4Si3 and molecular weight 238.46100 g/mol.

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

Last updated:

How to cite: Jingsj. "Simethicone (CAS 8050-81-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-47096-6 (accessed 2026-10-24).

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