9,9'-Spirobi[9H-9-silafluorene]
9,9'-螺二[9H-9-硅芴]
Also known as: 5,5'-spirobi[dibenzo[b,d]silole], 5,5'-spirobi[benzo[b][1]benzosilole], 5,5'-Spirobi(dibenzosilole), 5,5'-Spirobi[5H-dibenzosilole], 9,9-Spiro-9-Silabifluorene, bis(2,2'-biphenylene)silane, spirosilafluorene
9,9'-Spirobi[9H-9-silafluorene] (CAS 159-68-2) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C24H16Si and a molecular weight of 332.469 g/mol. It is also known as 5,5'-spirobi[dibenzo[b,d]silole], 5,5'-spirobi[benzo[b][1]benzosilole] and 5,5'-Spirobi(dibenzosilole). Key properties include a melting point of 232 °C, a boiling point of 491.3±18.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 237.9±14.8 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 159-68-2
- Jingsj CID
- J-1144273-2
- Molecular Formula
- C24H16Si
- Chinese Name
- 9,9'-螺二[9H-9-硅芴]
- Molecular Weight
- 332.469 g/mol
- Category
- Organic Compounds
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 232 °C |
|---|---|
| Boiling Point | 491.3±18.0 °C at 760 mmHg |
| Density | 1.3±0.1 g/cm3 |
| Flash Point | 237.9±14.8 °C |
Frequently Asked Questions
What is the CAS number of 9,9'-Spirobi[9H-9-silafluorene]?
The CAS number of 9,9'-Spirobi[9H-9-silafluorene] is 159-68-2.
What are the molecular formula and molecular weight of 9,9'-Spirobi[9H-9-silafluorene]?
9,9'-Spirobi[9H-9-silafluorene] has molecular formula C24H16Si and molecular weight 332.469 g/mol.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "9,9'-Spirobi[9H-9-silafluorene] (CAS 159-68-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1144273-2 (accessed 2026-10-22).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.