1,1,3,3-tetramethyldisiloxane-1,3-diol

1,1,3,3-四甲基-1,3-二硅氧烷二醇

Also known as: hydroxy-[hydroxy(dimethyl)silyl]oxy-dimethylsilane, 1,1,3,3-Tetramethyl-1,3-dihydroxypropanedisiloxane, 1,1,3,3-Tetramethyl-1,3-disiloxanediol, 1,3-Dihydroxy-1,1,3,3-tetramethyldisiloxane, 1,3-Dihydroxytetramethyldisiloxane, 1,3-Disiloxanediol,1,1,3,3-tetramethyl, 1,3-Disiloxanediol,tetramethyl, 3-Disiloxanediol, 1,1,3,3-tetramethyl-1, Tetramethyl-1,3-disiloxanediol, Tetramethyldisiloxane-1,3-diol, Tetramethyldisiloxanediol

1,1,3,3-tetramethyldisiloxane-1,3-diol (CAS 1118-15-6) is a compound in the Alcohols category listed in the Jingsj chemical database. It has the molecular formula C4H14O3Si2 and a molecular weight of 166.32300 g/mol. It is also known as hydroxy-[hydroxy(dimethyl)silyl]oxy-dimethylsilane, 1,1,3,3-Tetramethyl-1,3-dihydroxypropanedisiloxane and 1,1,3,3-Tetramethyl-1,3-disiloxanediol. Key properties include a boiling point of 167.4ºC at 760mmHg, a density of 0.993g/cm3 and a flash point of 55ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
1118-15-6
Jingsj CID
J-43968-0
Molecular Formula
C4H14O3Si2
Chinese Name
1,1,3,3-四甲基-1,3-二硅氧烷二醇
Molecular Weight
166.32300 g/mol
Category
Alcohols
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point167.4ºC at 760mmHg
Density0.993g/cm3
Flash Point55ºC

Frequently Asked Questions

What is the CAS number of 1,1,3,3-tetramethyldisiloxane-1,3-diol?

The CAS number of 1,1,3,3-tetramethyldisiloxane-1,3-diol is 1118-15-6.

What are the molecular formula and molecular weight of 1,1,3,3-tetramethyldisiloxane-1,3-diol?

1,1,3,3-tetramethyldisiloxane-1,3-diol has molecular formula C4H14O3Si2 and molecular weight 166.32300 g/mol.

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

Last updated:

How to cite: Jingsj. "1,1,3,3-tetramethyldisiloxane-1,3-diol (CAS 1118-15-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-43968-0 (accessed 2026-10-23).

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