4,5-Dimethoxyisobenzofuran-1(3H)-one

4,5-二甲氧基异苯并呋喃-1(3H)-酮

Also known as: 4,5-Dimethoxyphthalide, 1(3H)-Isobenzofuranone, 4,5-dimethoxy-, 4,5-dimethoxy-3H-2-benzofuran-1-one, Pseudomeconin, pseudomeconine, Y-Meconin, 4,5-Dimethoxy-phthalid

4,5-Dimethoxyisobenzofuran-1(3H)-one (CAS 4741-58-6) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C10H10O4 and a molecular weight of 194.18400 g/mol. It is also known as 4,5-Dimethoxyphthalide, 1(3H)-Isobenzofuranone, 4,5-dimethoxy- and 4,5-dimethoxy-3H-2-benzofuran-1-one. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 4741-58-6
Jingsj CID: J-1187522-6
Molecular Formula: C₁₀H₁₀O₄
Chinese Name: 4,5-二甲氧基异苯并呋喃-1(3H)-酮
Molecular Weight: 194.18400 g/mol
Category: Pharma Intermediates
Last updated: 8/21/2026

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Frequently Asked Questions

What is the CAS number of 4,5-Dimethoxyisobenzofuran-1(3H)-one?

The CAS number of 4,5-Dimethoxyisobenzofuran-1(3H)-one is 4741-58-6.

What are the molecular formula and molecular weight of 4,5-Dimethoxyisobenzofuran-1(3H)-one?

4,5-Dimethoxyisobenzofuran-1(3H)-one has molecular formula C10H10O4 and molecular weight 194.18400 g/mol.

Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.

Last updated: 8/21/2026

How to cite: Jingsj. "4,5-Dimethoxyisobenzofuran-1(3H)-one (CAS 4741-58-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1187522-6 (accessed 2026-10-22).

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