1,1,5,5-Tetraphenyl-1,3,3,5-tetramethyltrisiloxane

1,1,5,5-四苯基-1,3,3,5-四甲基三硅氧烷

Also known as: 1,1,5,5-Tetraphenyltetramethyltrisiloxane, 1,3,3,5-Tetramethyl-1,1,5,5-tetraphenyltrisiloxane, Phenylmethylsiloxane oligomer, Dimethyl-bis[[methyl(diphenyl)silyl]oxy]silane, Dow Corning 704 silicone diffusion pump fluid, MFCD00053661, EINECS 223-620-5

1,1,5,5-Tetraphenyl-1,3,3,5-tetramethyltrisiloxane (CAS 3982-82-9) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C28H32O2Si3 and a molecular weight of 484.809 g/mol. It is also known as 1,1,5,5-Tetraphenyltetramethyltrisiloxane, 1,3,3,5-Tetramethyl-1,1,5,5-tetraphenyltrisiloxane and Phenylmethylsiloxane oligomer. Key properties include a melting point of -25 °C, a boiling point of 495.8±28.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 209.1±24.4 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

3982-82-9

Jingsj CID

J-8171-7

Molecular Formula

C₂₈H₃₂O₂Si₃

Chinese Name

1,1,5,5-四苯基-1,3,3,5-四甲基三硅氧烷

Molecular Weight

484.809 g/mol

Category

Aromatic Hydrocarbons

Last updated

8/21/2026