1,5-divinyl-3,3-diphenyl-1,1,5,5-tetramethyltrisiloxane
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 C20H28O2Si3 and a molecular weight of 384.70000 g/mol. 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 Nov 3, 2026.
- CAS No.
- 18586-22-6
- Jingsj CID
- J-1523822-9
- Molecular Formula
- C20H28O2Si3
- Molecular Weight
- 384.70000 g/mol
- Category
- Aromatic Hydrocarbons
- Last updated
- 11/3/2026
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 |
| Exact Mass | 398.155365 |
| PSA | 18.46000 |
| LogP | 9.67 |
| Vapor Pressure | 0.0±0.9 mmHg at 25°C |
| Refractive Index | 1.514 |
Customs & Trade Information
| HS Code | 2934999090 |
|---|---|
| Summary | 2934999090. other heterocyclic compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0% |
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 C20H28O2Si3 and molecular weight 384.70000 g/mol.
Data compiled from public chemical databases such as PubChem 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-1523822-9 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.