5,6-Dimethoxy-3H-isobenzofuran-1-one

5,6-二甲氧基-3H-异苯并呋喃-1-酮

Also known as: 5,6-Dimethoxyphthalide, 5,6-Dimethoxy-3H-2-benzofuran-1-one, 5,6-Dimethoxy-2-benzofuran-1(3H)-one, 5,6-Dimethoxy-3-oxo-1,3-dihydroisobenzofuran-1-ide, 5,6-dimethoxy-1(3H)-Isobenzofuranone, 5,6-dimethoxy-3-hydroisobenzofuran-1-one, AKOS 211-04, Metameconin, TIMTEC-BB SBB010019

5,6-Dimethoxy-3H-isobenzofuran-1-one (CAS 759409-69-3) 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 194.184 g/mol. It is also known as 5,6-Dimethoxyphthalide, 5,6-Dimethoxy-3H-2-benzofuran-1-one and 5,6-Dimethoxy-2-benzofuran-1(3H)-one. Key properties include a boiling point of 403.0±45.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 184.6±28.8 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

759409-69-3

Jingsj CID

J-1328864-2

Molecular Formula

C₁₀H₁₀O₄

Chinese Name

5,6-二甲氧基-3H-异苯并呋喃-1-酮

Molecular Weight

194.184 g/mol

Category

Pharma Intermediates

Last updated

8/21/2026