3-methoxyisobenzofuran-1(3H)-one
Also known as: 3-Methoxy-1(3H)-isobenzofuranone, 3-Methoxyisobenzofuran-1(3H)-one, 3-Methoxyphthalide, 3-methoxy-3H-2-benzofuran-1-one, 1(3H)-Isobenzofuranone, 3-methoxy-
3-methoxyisobenzofuran-1(3H)-one (CAS 4122-57-0) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C9H8O3 and a molecular weight of 164.15800 g/mol. Key properties include a melting point of 45ºC, a boiling point of 146ºC / 12mmHg, a density of 1.25g/cm3 and a flash point of 119.5ºC. No supplier offers are currently listed; request a quote. Record last updated Nov 3, 2026.
- CAS No.
- 4122-57-0
- Jingsj CID
- J-1377331-4
- Molecular Formula
- C9H8O3
- Molecular Weight
- 164.15800 g/mol
- Category
- Aromatic Hydrocarbons
- Last updated
- 11/3/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 45ºC |
|---|---|
| Boiling Point | 146ºC / 12mmHg |
| Density | 1.25g/cm3 |
| Flash Point | 119.5ºC |
| Exact Mass | 164.04700 |
| PSA | 35.53000 |
| LogP | 1.50200 |
| Refractive Index | 1.559 |
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 3-methoxyisobenzofuran-1(3H)-one?
The CAS number of 3-methoxyisobenzofuran-1(3H)-one is 4122-57-0.
What are the molecular formula and molecular weight of 3-methoxyisobenzofuran-1(3H)-one?
3-methoxyisobenzofuran-1(3H)-one has molecular formula C9H8O3 and molecular weight 164.15800 g/mol.
What are the upstream and downstream products of 3-methoxyisobenzofuran-1(3H)-one?
For 3-methoxyisobenzofuran-1(3H)-one, Upstream Products: Methanol, 2-Carboxybenzaldehyde, Methyl 2-formylbenzoate; Downstream Products: Methyl 2-formylbenzoate.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "3-methoxyisobenzofuran-1(3H)-one (CAS 4122-57-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1377331-4 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.