5-hydroxy-3H-isobenzofuran-1-one
Also known as: 5-HYDROXYPHTHALIDE, 5-Hydroxy-phthalid, 5-hydroxy isobenzofuran-1(3H)-one, 5-hydroxy-1(3H)-isobenzofuranone, 5-hydroxy-2-benzofuran-1(3h)-one, 5-hydroxy-3H-2-benzofuran-1-one, 5-oxidanyl-3H-2-benzofuran-1-one, 1(3H)-Isobenzofuranone,5-hydroxy-
5-hydroxy-3H-isobenzofuran-1-one (CAS 55104-35-3) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C8H6O3 and a molecular weight of 150.13100 g/mol. Key properties include a melting point of 223-224 °C, a boiling point of 435.1ºC at 760 mmHg, a density of 1.436g/cm3 and a flash point of 211.7ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 55104-35-3
- Jingsj CID
- J-1185463-0
- Molecular Formula
- C8H6O3
- Molecular Weight
- 150.13100 g/mol
- Category
- Aromatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 223-224 °C |
|---|---|
| Boiling Point | 435.1ºC at 760 mmHg |
| Density | 1.436g/cm3 |
| Flash Point | 211.7ºC |
| Exact Mass | 150.03200 |
| PSA | 46.53000 |
| LogP | 1.06260 |
| Refractive Index | 1.635 |
Customs & Trade Information
| HS Code | 2932999099 |
|---|---|
| Summary | 2932999099. other heterocyclic compounds with oxygen hetero-atom(s) only. 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 5-hydroxy-3H-isobenzofuran-1-one?
The CAS number of 5-hydroxy-3H-isobenzofuran-1-one is 55104-35-3.
What are the molecular formula and molecular weight of 5-hydroxy-3H-isobenzofuran-1-one?
5-hydroxy-3H-isobenzofuran-1-one has molecular formula C8H6O3 and molecular weight 150.13100 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. "5-hydroxy-3H-isobenzofuran-1-one (CAS 55104-35-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1185463-0 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.