2-Methylisoquinoline-1,3(2H,4H)-dione

2-甲基异喹啉-1,3(2H,4H)-二酮

Also known as: 1,3(2H,4H)-Isoquinolinedione, 2-methyl-, 1,2,3,4-Tetrahydro-2-methyl-1,3-dioxoisoquinoline, 2-methyl-1,2,3,4-tetrahydroisoquinoline-1,3-dione, 2-methyl-4H-isoquinoline-1,3-dione, N-methylhomophthalimide

2-Methylisoquinoline-1,3(2H,4H)-dione (CAS 4494-53-5) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C10H9NO2 and a molecular weight of 175.18400 g/mol. It is also known as 1,3(2H,4H)-Isoquinolinedione, 2-methyl-, 1,2,3,4-Tetrahydro-2-methyl-1,3-dioxoisoquinoline and 2-methyl-1,2,3,4-tetrahydroisoquinoline-1,3-dione. Key properties include a melting point of 121-122 °C, a boiling point of 355.6ºC at 760 mmHg, a density of 1.248g/cm3 and a flash point of 173.4ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

4494-53-5

Jingsj CID

J-1180257-4

Molecular Formula

C₁₀H₉NO₂

Chinese Name

2-甲基异喹啉-1,3(2H,4H)-二酮

Molecular Weight

175.18400 g/mol

Category

Pharma Intermediates

Last updated

8/21/2026