Diphenylbis(phenylethynyl)silane
二苯基双(苯乙炔基)硅烷
Also known as: Bis(phenylethynyl)diphenylsilane, Di(phenylethynyl)diphenylsilane, Silane, diphenylbis(phenylethynyl)-, 1,1'-[Bis(2-phenylethynyl)silylene]bisbenzene, Diphenylbis(phenylethynyl)-silane, QC-1551, diphenyl-bis(2-phenylethynyl)silane, bis(phenylethynylene)diphenylsilane
Diphenylbis(phenylethynyl)silane (CAS 18784-61-7) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C28H20Si and a molecular weight of 384.544 g/mol. It is also known as Bis(phenylethynyl)diphenylsilane, Di(phenylethynyl)diphenylsilane and Silane, diphenylbis(phenylethynyl)-. Key properties include a melting point of 81 °C, a boiling point of 505.2±23.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 246.6±15.6 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 18784-61-7
- Jingsj CID
- J-1356864-3
- Molecular Formula
- C28H20Si
- Chinese Name
- 二苯基双(苯乙炔基)硅烷
- Molecular Weight
- 384.544 g/mol
- Category
- Aromatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 81 °C |
|---|---|
| Boiling Point | 505.2±23.0 °C at 760 mmHg |
| Density | 1.1±0.1 g/cm3 |
| Flash Point | 246.6±15.6 °C |
Frequently Asked Questions
What is the CAS number of Diphenylbis(phenylethynyl)silane?
The CAS number of Diphenylbis(phenylethynyl)silane is 18784-61-7.
What are the molecular formula and molecular weight of Diphenylbis(phenylethynyl)silane?
Diphenylbis(phenylethynyl)silane has molecular formula C28H20Si and molecular weight 384.544 g/mol.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Diphenylbis(phenylethynyl)silane (CAS 18784-61-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1356864-3 (accessed 2026-10-25).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.