7-Methoxyisobenzofuran-1(3H)-one

7-甲氧基异苯并呋喃-1(3H)-酮

Also known as: 7-Methoxyphthalide, 7-METHOXYISOBENZOFURAN-1(3H)-ONE, 1(3H)-Isobenzofuranone, 7-methoxy-, 7-methoxy-2-benzofuran-1(3H)-one, 7-methoxy-3H-2-benzofuran-1-one, 7-methoxy-3H-isobenzofuran-1-one

7-Methoxyisobenzofuran-1(3H)-one (CAS 28281-58-5) is a compound in the Pharma Intermediates 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 7-Methoxyphthalide, 7-METHOXYISOBENZOFURAN-1(3H)-ONE and 1(3H)-Isobenzofuranone, 7-methoxy-. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
28281-58-5
Jingsj CID
J-1086222-1
Molecular Formula
C9H8O3
Chinese Name
7-甲氧基异苯并呋喃-1(3H)-酮
Molecular Weight
164.15800 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Frequently Asked Questions

What is the CAS number of 7-Methoxyisobenzofuran-1(3H)-one?

The CAS number of 7-Methoxyisobenzofuran-1(3H)-one is 28281-58-5.

What are the molecular formula and molecular weight of 7-Methoxyisobenzofuran-1(3H)-one?

7-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. "7-Methoxyisobenzofuran-1(3H)-one (CAS 28281-58-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1086222-1 (accessed 2026-10-25).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.