1,5-divinyl-3,3-diphenyl-1,1,5,5-tetramethyltrisiloxane
1,5-二乙烯基-3,3-二苯基-1,1,5,5-四甲基三硅氧烷
Also known as: bis[[ethenyl(dimethyl)silyl]oxy]-diphenylsilane, 1,1,5,5-tetramethyl-3,3-diphenyl-1,5-divinyltrisiloxane, 1,5-diethenyl-1,1,5,5-tetramethyl-3,3-diphenyl-trisiloxane, 1,5-diethenyl-1,1,5,5-dimethyl-3,3-diphenyltrisiloxane, 1,5-diethenyl-1,1,5,5-tetramethyl-3,3-diphenylpentanetrisiloxane, Trisiloxane, 1,5-diethenyl-1,1,5,5-tetramethyl-3,3-diphenyl-, Einecs 242-426-1, EINECS 242-426-1
1,5-divinyl-3,3-diphenyl-1,1,5,5-tetramethyltrisiloxane (CAS 18586-22-6) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C21H30O2Si3 and a molecular weight of 398.718 g/mol. It is also known as bis[[ethenyl(dimethyl)silyl]oxy]-diphenylsilane, 1,1,5,5-tetramethyl-3,3-diphenyl-1,5-divinyltrisiloxane and 1,5-diethenyl-1,1,5,5-tetramethyl-3,3-diphenyl-trisiloxane. Key properties include a melting point of <0ºC, a boiling point of 391.0±35.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 161.7±26.3 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 18586-22-6
- Jingsj CID
- J-1523822-3
- Molecular Formula
- C21H30O2Si3
- Chinese Name
- 1,5-二乙烯基-3,3-二苯基-1,1,5,5-四甲基三硅氧烷
- Molecular Weight
- 398.718 g/mol
- Category
- Aromatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | <0ºC |
|---|---|
| Boiling Point | 391.0±35.0 °C at 760 mmHg |
| Density | 1.0±0.1 g/cm3 |
| Flash Point | 161.7±26.3 °C |
Frequently Asked Questions
What is the CAS number of 1,5-divinyl-3,3-diphenyl-1,1,5,5-tetramethyltrisiloxane?
The CAS number of 1,5-divinyl-3,3-diphenyl-1,1,5,5-tetramethyltrisiloxane is 18586-22-6.
What are the molecular formula and molecular weight of 1,5-divinyl-3,3-diphenyl-1,1,5,5-tetramethyltrisiloxane?
1,5-divinyl-3,3-diphenyl-1,1,5,5-tetramethyltrisiloxane has molecular formula C21H30O2Si3 and molecular weight 398.718 g/mol.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "1,5-divinyl-3,3-diphenyl-1,1,5,5-tetramethyltrisiloxane (CAS 18586-22-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1523822-3 (accessed 2026-10-22).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.