5,6-Dimethoxy-2-(pyridin-4-ylmethylene)-2,3-dihydro-1H-inden-1-one

5,6-二甲氧基-2-(4-吡啶基)亚甲基-1-茚酮

Also known as: 5,6-Dimethoxy-2-(4-pyridylmethylene)-1-indanone, Donepezil Impurity 23, 2,3-dihydro-5,6-dimethoxy-2-(4-pyridinylmethylene)-1H-inden-1-one, MFCD08458868

5,6-Dimethoxy-2-(pyridin-4-ylmethylene)-2,3-dihydro-1H-inden-1-one (CAS 4803-74-1) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C17H15NO3 and a molecular weight of 281.306 g/mol. It is also known as 5,6-Dimethoxy-2-(4-pyridylmethylene)-1-indanone, Donepezil Impurity 23 and 2,3-dihydro-5,6-dimethoxy-2-(4-pyridinylmethylene)-1H-inden-1-one. Key properties include a melting point of 210-211ºC, a boiling point of 499.9±45.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 256.1±28.7 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

4803-74-1

Jingsj CID

J-1162395-7

Molecular Formula

C₁₇H₁₅NO₃

Chinese Name

5,6-二甲氧基-2-(4-吡啶基)亚甲基-1-茚酮

Molecular Weight

281.306 g/mol

Category

Pharma Intermediates

Last updated

8/21/2026