O-Desmethyl Apremilast

O-去甲基阿普斯特

Also known as: O-Desmethyl Apremilast, Apremilast Impurity 20, Apremilast Impurity 4, Apremilast Impurity K, Apremilast impurity HS093311, N-[2-[(1S)-1-(3-ethoxy-4-hydroxyphenyl)-2-(methylsulfonyl)ethyl]-2,3-dihydro-1,3-dioxo-1H-isoindol-4-yl]acetamide, Acetamide, N-[2-[(1S)-1-(3-ethoxy-4-hydroxyphenyl)-2-(methylsulfonyl)ethyl]-2,3-dihydro-1,3-dioxo-1H-isoindol-4-yl]-, 0SUF2IX83T, O-demethyl Apremilast, (S)-N-{2-[1-(3-ethoxy-4-hydroxy-phenyl)-2-methanesulfonyl-ethyl]-1,3-dioxo-2,3-dihydro-1H-isoindol-4-yl}-acetamide

O-Desmethyl Apremilast (CAS 1384441-38-6) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C21H22N2O7S and a molecular weight of 446.474 g/mol. It is also known as Apremilast Impurity 20, Apremilast Impurity 4 and Apremilast Impurity K. Key properties include a boiling point of 765.2±60.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 416.6±32.9 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

1384441-38-6

Jingsj CID

J-1528848-6

Molecular Formula

C₂₁H₂₂N₂O₇S

Chinese Name

O-去甲基阿普斯特

Molecular Weight

446.474 g/mol

Category

Organic Compounds

Last updated

8/21/2026