5,6-Dimethoxy-2-(pyridin-4-ylmethylene)-2,3-dihydro-1H-inden-1-one
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. 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-1162395-3
- Molecular Formula
- C17H15NO3
- Molecular Weight
- 281.306 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 210-211ºC |
|---|---|
| Boiling Point | 499.9±45.0 °C at 760 mmHg |
| Density | 1.3±0.1 g/cm3 |
| Flash Point | 256.1±28.7 °C |
| Exact Mass | 281.105194 |
| PSA | 48.42000 |
| LogP | 2.62 |
| Vapor Pressure | 0.0±1.3 mmHg at 25°C |
| Refractive Index | 1.639 |
| Storage Conditions | Refrigerator |
Frequently Asked Questions
What is the CAS number of 5,6-Dimethoxy-2-(pyridin-4-ylmethylene)-2,3-dihydro-1H-inden-1-one?
The CAS number of 5,6-Dimethoxy-2-(pyridin-4-ylmethylene)-2,3-dihydro-1H-inden-1-one is 4803-74-1.
What are the molecular formula and molecular weight of 5,6-Dimethoxy-2-(pyridin-4-ylmethylene)-2,3-dihydro-1H-inden-1-one?
5,6-Dimethoxy-2-(pyridin-4-ylmethylene)-2,3-dihydro-1H-inden-1-one has molecular formula C17H15NO3 and molecular weight 281.306 g/mol.
What are the upstream and downstream products of 5,6-Dimethoxy-2-(pyridin-4-ylmethylene)-2,3-dihydro-1H-inden-1-one?
For 5,6-Dimethoxy-2-(pyridin-4-ylmethylene)-2,3-dihydro-1H-inden-1-one, Upstream Products: 4-Pyridinecarboxaldehyde, 5,6-Dimethoxy-1-indanone, 2-Bromo-5,6-dimethoxy-2,3-dihydro-1H-inden-1-one; Downstream Products: 5,6-Dimethoxy-2-(4-pyridylmethyl)-1-indanone.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "5,6-Dimethoxy-2-(pyridin-4-ylmethylene)-2,3-dihydro-1H-inden-1-one (CAS 4803-74-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1162395-3 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.