3-methoxyisobenzofuran-1(3H)-one
3-甲氧基苯酞
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. It is also known as 3-Methoxy-1(3H)-isobenzofuranone, 3-Methoxyisobenzofuran-1(3H)-one and 3-Methoxyphthalide. 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 Aug 21, 2026.
- CAS No.
- 4122-57-0
- Jingsj CID
- J-1377331-5
- Molecular Formula
- C9H8O3
- Chinese Name
- 3-甲氧基苯酞
- Molecular Weight
- 164.15800 g/mol
- Category
- Aromatic Hydrocarbons
- Last updated
- 8/21/2026
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 |
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.
Data compiled from public chemical databases 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-1377331-5 (accessed 2026-10-22).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.