Polyalkyleneoxide modified heptamethyltrisiloxane

聚醚改性七甲基三硅氧烷

Also known as: Silwet L-77, 3-(2-methoxyethoxy)propyl-methyl-bis(trimethylsilyloxy)silane, Glycols, polyethylene, methyl 3-[1,3,3,3-tetramethyl-1-(trimethylsiloxy)disiloxanyl]propyl ether, Polyethylene glycol mono(3-(tetramethyl-1-(trimethylsiloxy)disiloxanyl)propyl)ether, Polyalkyleneoxide modified heptamethyltrisiloxane, MFCD00240065, POLY(DIMETHYLSILOXANE-B-ETHYLENE OXIDE), METHYL TERMINATED, POLY(DIMETHYLSILOXANE-CO-ETHYLENE OXIDE), AB BLOCK COPOLYMER, POLY[DIMETHYLSILOXANE-CO-METHYL(3-HYDROXYPROPYL)SILOXANE]-GRAFT-POLY(ETHYLENE GLYCOL) METHYL ETHER, poly(oxy-1,2-ethanediyl),alpha-methyl-omega-[3-[1,3,3,3-tetramethyl-1-[(trimethylsilyl)oxy]disiloxanyl]propoxy]-

Polyalkyleneoxide modified heptamethyltrisiloxane (CAS 27306-78-1) is a compound in the Ethers category listed in the Jingsj chemical database. It has the molecular formula C13H34O4Si3 and a molecular weight of 338.66300 g/mol. It is also known as Silwet L-77, 3-(2-methoxyethoxy)propyl-methyl-bis(trimethylsilyloxy)silane and Glycols, polyethylene, methyl 3-[1,3,3,3-tetramethyl-1-(trimethylsiloxy)disiloxanyl]propyl ether. Key properties include a melting point of #NAME?, a boiling point of 200 13mm, a density of 1.035 g/cm3 and a flash point of >230 °F. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

27306-78-1

Jingsj CID

J-1412536-2

Molecular Formula

C₁₃H₃₄O₄Si₃

Chinese Name

聚醚改性七甲基三硅氧烷

Molecular Weight

338.66300 g/mol

Category

Ethers

Last updated

8/21/2026