dimethylsilanediol

二甲基硅烷二醇

Also known as: 1,1-Dimethylsilanediol, Dihydroxydimethylsilane, Dimethyldihydroxysilane, Si(OH)2Me2, Silanediol, 1,1-dimethyl-, Silanediol, dimethyl-, Silanediol,1,1-dimethyl, Silanediol,dimethyl, Simethicone Impurity 1, Simethicone Impurity 1 (Dimethylsilanediol), dihydroxy(dimethyl)silane, dihydroxy-dimethyl-silane, dimethyl dihydroxy silane, dimethyl siloxane, dimetyhsilanediol

dimethylsilanediol (CAS 1066-42-8) is a compound in the Alcohols category listed in the Jingsj chemical database. It has the molecular formula C2H8O2Si and a molecular weight of 92.16920 g/mol. It is also known as 1,1-Dimethylsilanediol, Dihydroxydimethylsilane and Dimethyldihydroxysilane. Key properties include a melting point of >75 °C (dec.) (lit.), a boiling point of 122.2ºC at 760mmHg, a density of 0.998g/cm3 and a flash point of 27.7ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
1066-42-8
Jingsj CID
J-962539-4
Molecular Formula
C2H8O2Si
Chinese Name
二甲基硅烷二醇
Molecular Weight
92.16920 g/mol
Category
Alcohols
Last updated
8/21/2026

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Physicochemical Properties

Melting Point>75 °C (dec.) (lit.)
Boiling Point122.2ºC at 760mmHg
Density0.998g/cm3
Flash Point27.7ºC

Frequently Asked Questions

What is the CAS number of dimethylsilanediol?

The CAS number of dimethylsilanediol is 1066-42-8.

What are the molecular formula and molecular weight of dimethylsilanediol?

dimethylsilanediol has molecular formula C2H8O2Si and molecular weight 92.16920 g/mol.

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

Last updated:

How to cite: Jingsj. "dimethylsilanediol (CAS 1066-42-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-962539-4 (accessed 2026-10-22).

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