5-Ethynylbenzo[d][1,3]dioxole
5-乙炔基苯并[d][1,3]二氧杂环戊烯
Also known as: 1,3-Benzodioxole,5-ethynyl-, 5-Ethynyl-1,3-benzodioxole, 5-Ethynylbenzo-1,3-dioxole, 4-ethynyl-1,2-methylenedioxybenzene, 5-ETHYNYL-BENZO[1,3]DIOXOLE, Einecs 260-583-4
5-Ethynylbenzo[d][1,3]dioxole (CAS 57134-53-9) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C9H6O2 and a molecular weight of 146.143 g/mol. It is also known as 1,3-Benzodioxole,5-ethynyl-, 5-Ethynyl-1,3-benzodioxole and 5-Ethynylbenzo-1,3-dioxole. Key properties include a melting point of 31ºC, a boiling point of 222.9±29.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 90.1±23.8 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 57134-53-9
- Jingsj CID
- J-1476465-3
- Molecular Formula
- C9H6O2
- Chinese Name
- 5-乙炔基苯并[d][1,3]二氧杂环戊烯
- Molecular Weight
- 146.143 g/mol
- Category
- Aromatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 31ºC |
|---|---|
| Boiling Point | 222.9±29.0 °C at 760 mmHg |
| Density | 1.2±0.1 g/cm3 |
| Flash Point | 90.1±23.8 °C |
Frequently Asked Questions
What is the CAS number of 5-Ethynylbenzo[d][1,3]dioxole?
The CAS number of 5-Ethynylbenzo[d][1,3]dioxole is 57134-53-9.
What are the molecular formula and molecular weight of 5-Ethynylbenzo[d][1,3]dioxole?
5-Ethynylbenzo[d][1,3]dioxole has molecular formula C9H6O2 and molecular weight 146.143 g/mol.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "5-Ethynylbenzo[d][1,3]dioxole (CAS 57134-53-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1476465-3 (accessed 2026-10-23).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.