2(3H)-Benzofuranone
Also known as: 2-Coumaranone, Isocoumaranone, Benzofuran-2(3H)-one, 2,3-dihydrobenzofuran-2-one, 2,3-dihydro-2-benzofuranone, 2-Cumaranon, 3H-Benzofuran-2-one, 1-Benzofuran-2(3H)-one, Coumaran-2-one
2(3H)-Benzofuranone (CAS 553-86-6) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C8H6O2 and a molecular weight of 134.132 g/mol. Key properties include a melting point of 49-51 °C(lit.), a boiling point of 249.0±15.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 96.9±17.8 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 553-86-6
- Jingsj CID
- J-40719-2
- Molecular Formula
- C8H6O2
- Molecular Weight
- 134.132 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 49-51 °C(lit.) |
|---|---|
| Boiling Point | 249.0±15.0 °C at 760 mmHg |
| Density | 1.3±0.1 g/cm3 |
| Flash Point | 96.9±17.8 °C |
| Exact Mass | 134.036774 |
| PSA | 26.30000 |
| LogP | 1.30 |
| Vapor Pressure | 0.0±0.5 mmHg at 25°C |
| Refractive Index | 1.585 |
Customs & Trade Information
| HS Code | 2932209090 |
|---|---|
| Summary | 2932209090. other lactones. 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(3H)-Benzofuranone?
The CAS number of 2(3H)-Benzofuranone is 553-86-6.
What are the molecular formula and molecular weight of 2(3H)-Benzofuranone?
2(3H)-Benzofuranone has molecular formula C8H6O2 and molecular weight 134.132 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(3H)-Benzofuranone (CAS 553-86-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-40719-2 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.