2-allenyl-4,4,5,5-tetramethyl-1,3,2-dioxaborolane
Also known as: Allenylboronic acid pinacol ester, 4,4,5,5-Tetramethyl-2-(propa-1,2-dien-1-yl)-1,3,2-dioxaborolane, 4,4,5,5-Tetramethyl-2-(1,2-propadienyl)-1,3,2-dioxaborolane, 1,3,2-Dioxaborolane, 4,4,5,5-tetramethyl-2-(1,2-propadien-1-yl)-, 4,4,5,5-tetramethyl-2-propadienyl-1,3,2-dioxaborolane
2-allenyl-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 865350-17-0) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C9H15BO2 and a molecular weight of 166.025 g/mol. Key properties include a boiling point of 163.0±23.0 °C at 760 mmHg, a density of 0.9±0.1 g/cm3 and a flash point of 52.4±22.6 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 865350-17-0
- Jingsj CID
- J-8491-3
- Molecular Formula
- C9H15BO2
- Molecular Weight
- 166.025 g/mol
- Category
- Aliphatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 163.0±23.0 °C at 760 mmHg |
|---|---|
| Density | 0.9±0.1 g/cm3 |
| Flash Point | 52.4±22.6 °C |
| Exact Mass | 166.116516 |
| PSA | 18.46000 |
| LogP | 1.95890 |
| Vapor Pressure | 2.8±0.3 mmHg at 25°C |
| Refractive Index | 1.426 |
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 2-allenyl-4,4,5,5-tetramethyl-1,3,2-dioxaborolane?
The CAS number of 2-allenyl-4,4,5,5-tetramethyl-1,3,2-dioxaborolane is 865350-17-0.
What are the molecular formula and molecular weight of 2-allenyl-4,4,5,5-tetramethyl-1,3,2-dioxaborolane?
2-allenyl-4,4,5,5-tetramethyl-1,3,2-dioxaborolane has molecular formula C9H15BO2 and molecular weight 166.025 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. "2-allenyl-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 865350-17-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-8491-3 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.