2,3-Benzofuran CAS Number: 271-89-6
Pharmaceutical Materials 2025-03-02
Chemical Name: 2,3-Benzofuran.
CAS Number: 271-89-6.
Molecular Formula: C8H6O.
Molecular Weight: 118.13.
Appearance: Colorless oil-like liquid.
Melting Point: Below -18°C.
Boiling Point: 173-175°C.
Density: 1.095 g/mL at 20°C.
Flash Point: 50°C.
2,3-Benzofuran, also known as Benzofuran or Coumarone, is a heterocyclic aromatic organic compound with the CAS number 271-89-6. It exists as an oily liquid with a fragrant odor at room temperature. This compound is utilized primarily as an intermediate in the production of synthetic resins such as coumarone-indene resin, which finds applications in paints, glues, and even food packaging. However, it is noteworthy that 2,3-Benzofuran possesses carcinogenic potential, necessitating proper handling and protective gear for operators.
| Property Category | Details |
|---|---|
| Physical Properties | |
| Appearance | Colorless oily liquid with a fragrant odor |
| Melting Point | Below -18 °C |
| Boiling Point | 173-175 °C (at atmospheric pressure) |
| Density | 1.095 g/mL at 20 °C |
| Refractive Index | 1.567 (n20/D) |
| Flash Point | 56 °C (or 133 °F) |
| Solubility | Insoluble in water; miscible with benzene, petroleum ether, and ethers |
| Chemical Properties | |
| Molecular Formula | C8H6O |
| Molecular Weight | 118.13 g/mol |
| Stability | Stable, but can slowly polymerize over time and with exposure to acid |
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