3-Ethyl-1,1,1,3,5,5,5-heptamethyltrisiloxane

3-乙基七甲基三硅氧烷

Also known as: 3-ethylheptamethyltrisiloxane, 3-ethyl-1,1,1,3,5,5,5-heptamethyltrisiloxane, ETHYL TRISILOXANE, Ethyl heptamethyltrisiloxane IOTA 20578, Trisiloxane, 3-ethyl-1,1,1,3,5,5,5-heptamethyl-, Trisiloxane,3-ethyl-1,1,1,3,5,5,5-heptamethyl, ethyl-methyl-bis(trimethylsilyloxy)silane, heptamethyl 2-ethyl trisiloxane, 3-Aethyl-1,1,1,3,5,5,5-heptamethyl-trisiloxan

3-Ethyl-1,1,1,3,5,5,5-heptamethyltrisiloxane (CAS 17861-60-8) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C9H26O2Si3 and a molecular weight of 250.558 g/mol. It is also known as 3-ethylheptamethyltrisiloxane, 3-ethyl-1,1,1,3,5,5,5-heptamethyltrisiloxane and ETHYL TRISILOXANE. Key properties include a boiling point of 201.0±23.0 °C at 760 mmHg, a density of 0.8±0.1 g/cm3 and a flash point of 66.3±23.0 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

17861-60-8

Jingsj CID

J-1505301-5

Molecular Formula

C₉H₂₆O₂Si₃

Chinese Name

3-乙基七甲基三硅氧烷

Molecular Weight

250.558 g/mol

Category

Aliphatic Hydrocarbons

Last updated

8/21/2026