Siloxanes and Silicones, di-Me, polymers with Me silsesquioxanes, methoxy-terminated

甲氧基封端甲基倍半硅氧烷-二甲基硅氧烷共聚物

Also known as: Methoxymethylsiloxane-dimethylsiloxane copolymer, Dimethicone/silsesquioxane copolymer, Methyltrimethoxysilane, dimethyldimethoxysilane, hydrolysis, methoxylation product, Siloxanes and silicones, di-Me, polymers with Me silsesquioxanes, methoxy-terminated

Siloxanes and Silicones, di-Me, polymers with Me silsesquioxanes, methoxy-terminated (CAS 68440-84-6) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C6H18O3Si2 and a molecular weight of 194.37632 g/mol. It is also known as Methoxymethylsiloxane-dimethylsiloxane copolymer, Dimethicone/silsesquioxane copolymer and Methyltrimethoxysilane, dimethyldimethoxysilane, hydrolysis, methoxylation product. Key properties include a melting point of <-40°C, a boiling point of >205°C, a density of 1,18 g/cm3 and a flash point of >110°C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
68440-84-6
Jingsj CID
J-802343-0
Molecular Formula
C6H18O3Si2
Chinese Name
甲氧基封端甲基倍半硅氧烷-二甲基硅氧烷共聚物
Molecular Weight
194.37632 g/mol
Category
Aliphatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Melting Point<-40°C
Boiling Point>205°C
Density1,18 g/cm3
Flash Point>110°C

Frequently Asked Questions

What is the CAS number of Siloxanes and Silicones, di-Me, polymers with Me silsesquioxanes, methoxy-terminated?

The CAS number of Siloxanes and Silicones, di-Me, polymers with Me silsesquioxanes, methoxy-terminated is 68440-84-6.

What are the molecular formula and molecular weight of Siloxanes and Silicones, di-Me, polymers with Me silsesquioxanes, methoxy-terminated?

Siloxanes and Silicones, di-Me, polymers with Me silsesquioxanes, methoxy-terminated has molecular formula C6H18O3Si2 and molecular weight 194.37632 g/mol.

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

Last updated:

How to cite: Jingsj. "Siloxanes and Silicones, di-Me, polymers with Me silsesquioxanes, methoxy-terminated (CAS 68440-84-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-802343-0 (accessed 2026-10-25).

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