(Methacryloxymethyl)bis(trimethylsiloxy)methylsilane

(甲基丙烯酰氧基甲基)双(三甲基硅氧基)甲基硅烷

Also known as: (1,1,1,3,5,5,5-Heptamethyltrisiloxan-3-yl)methyl 2-methylprop-2-enoate, (1,1,1,3,5,5,5-Heptamethyl-3-trisiloxanyl)methyl methacrylate, 2-Propenoic acid, 2-methyl-, [1,3,3,3-tetramethyl-1-[(trimethylsilyl)oxy]disiloxanyl]methyl ester, Geniosil XL32, Methacrylsaeure-(1,1,1,3,5,5,5-heptamethyl-trisiloxan-3-ylmethylester), XL 32

(Methacryloxymethyl)bis(trimethylsiloxy)methylsilane (CAS 18166-40-0) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C12H28O4Si3 and a molecular weight of 320.605 g/mol. It is also known as (1,1,1,3,5,5,5-Heptamethyltrisiloxan-3-yl)methyl 2-methylprop-2-enoate, (1,1,1,3,5,5,5-Heptamethyl-3-trisiloxanyl)methyl methacrylate and 2-Propenoic acid, 2-methyl-, [1,3,3,3-tetramethyl-1-[(trimethylsilyl)oxy]disiloxanyl]methyl ester. Key properties include a boiling point of 281.9±42.0 °C at 760 mmHg, a density of 0.9±0.1 g/cm3 and a flash point of 103.3±23.4 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

18166-40-0

Jingsj CID

J-1101014-8

Molecular Formula

C₁₂H₂₈O₄Si₃

Chinese Name

(甲基丙烯酰氧基甲基)双(三甲基硅氧基)甲基硅烷

Molecular Weight

320.605 g/mol

Category

Aliphatic Hydrocarbons

Last updated

8/21/2026