ChemicalBook >> CAS DataBase List >>5,6-Dimethoxy-2-(pyridine-4-yl)methylene-indan-1-one
5,6-Dimethoxy-2-(pyridine-4-yl)methylene-indan-1-one
- CAS No.
- 4803-74-1
- Chemical Name:
- 5,6-Dimethoxy-2-(pyridine-4-yl)methylene-indan-1-one
- Synonyms
- Donepezil Impurity D;Donepezil Impurity 23;Donepezil Impurity 48;Letimovir intermediate;Doneprzil Pyridine Dehydro Imp;Donepezil pyridine dehydro Imp;Donepezil Pyridine Dehydro Impurity;5,6-Dimethoxy-2-[(4-pyridyl)methyle;5,6-Dimethoxy-2- (4-pyridyl) methyl-1-indenone;5, 6-dimethoxy-2 -(4-pyridyl) methylene-1-indone
- CBNumber:
- CB0842563
- Molecular Formula:
- C17H15NO3
- Molecular Weight:
- 281.31
- MDL Number:
- MFCD08458868
- MOL File:
- 4803-74-1.mol
Last updated:2025-07-24 18:12:10
| Product description | Number | Pack Size | Price |
| 5,6-Dimethoxy-2-(4-pyridylmethylene)-1-indanone(DonepezilImpurity) | D460720 | 25mg | $65 |
| 5,6-Dimethoxy-2-(4-pyridylmethylene)-1-indanone | ID22170 | 100mg | $100 |
| 5,6-Dimethoxy-2-(4-pyridylmethylene)-1-indanone(DonepezilImpurity) | J11726 | 100mg | $147 |
| 5,6-Dimethoxy-2-(4-pyridylmethylene)-1-indanone | ID22170 | 250mg | $200 |
| 5,6-Dimethoxy-2-(pyridine-4-yl)methylene-indan-1-one | J52235 | 1g | $11 |
| More product size | |||
| Melting point | 210-211°C |
|---|---|
| Boiling point | 499.9±45.0 °C(Predicted) |
| Density | 1.255 |
| storage temp. | Sealed in dry,Room Temperature |
| solubility | Chloroform (Slightly), Methanol (Slightly, Heated) |
| pka | 5.10±0.10(Predicted) |
| form | Solid |
| color | Yellow |
| CAS DataBase Reference | 4803-74-1(CAS DataBase Reference) |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |  GHS07 |
|---|---|
| Signal word | Warning |
| Hazard statements | H315-H319-H335 |
| Precautionary statements | P261-P264-P271-P280-P302+P352-P304+P340+P312-P305+P351+P338-P332+P313-P337+P313-P403+P233-P405-P501 |
5,6-Dimethoxy-2-(pyridine-4-yl)methylene-indan-1-one price More Price(24)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| TRC | D460720 | 5,6-Dimethoxy-2-(4-pyridylmethylene)-1-indanone(DonepezilImpurity) | 4803-74-1 | 25mg | $65 | 2021-12-16 | Buy |
| Biosynth Carbosynth | ID22170 | 5,6-Dimethoxy-2-(4-pyridylmethylene)-1-indanone | 4803-74-1 | 100mg | $100 | 2021-12-16 | Buy |
| AK Scientific | J11726 | 5,6-Dimethoxy-2-(4-pyridylmethylene)-1-indanone(DonepezilImpurity) | 4803-74-1 | 100mg | $147 | 2021-12-16 | Buy |
| Biosynth Carbosynth | ID22170 | 5,6-Dimethoxy-2-(4-pyridylmethylene)-1-indanone | 4803-74-1 | 250mg | $200 | 2021-12-16 | Buy |
| AK Scientific | J52235 | 5,6-Dimethoxy-2-(pyridine-4-yl)methylene-indan-1-one | 4803-74-1 | 1g | $11 | 2021-12-16 | Buy |
5,6-Dimethoxy-2-(pyridine-4-yl)methylene-indan-1-one Chemical Properties,Uses,Production
Chemical Properties
Yellow Solid
Uses
An impurity of Donepezil.
References
[1] Patent: WO2012/131540, 2012, A1. Location in patent: Page/Page column 16
[2] Patent: US2004/143121, 2004, A1. Location in patent: Page 3
[3] Patent: WO2004/82685, 2004, A1. Location in patent: Page/Page column 9
[4] European Journal of Medicinal Chemistry, 2011, vol. 46, # 11, p. 5694 - 5697
[5] Bioorganic and Medicinal Chemistry Letters, 2012, vol. 22, # 23, p. 7029 - 7035,7
5,6-Dimethoxy-2-(pyridine-4-yl)methylene-indan-1-one Preparation Products And Raw materials
Raw materials
Preparation Products
Global( 205)Suppliers
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Hebei Yanxi Chemical Co., Ltd. | +8618531123677 | faithe@yan-xi.com | China | 5853 | 58 |
| Jinan Chenghui-Shuangda Chemical Co.,Ltd | +86-531-58897082 | ericqiao@jnchsd.com | CHINA | 158 | 58 |
| Jinan Finer Chemical Co., Ltd | +86-531-88989536 +86-15508631887 | sales@finerchem.com | China | 2950 | 58 |
| Hubei xin bonus chemical co. LTD | 86-13657291602 | linda@hubeijusheng.com | CHINA | 22963 | 58 |
| Standardpharm Co. Ltd. | 86-714-3992388 | overseasales1@yongstandards.com | United States | 14332 | 58 |
| Alchem Pharmtech,Inc. | 8485655694 | sales@alchempharmtech.com | United States | 63687 | 58 |
| career henan chemical co | +86-0371-86658258 +8613203830695 | factory@coreychem.com | China | 29795 | 58 |
| Neostar United (Changzhou) Industrial Co., Ltd. | +86-0519-85551759 +8613506123987 | marketing1@neostarunited.com | China | 8830 | 58 |
| SIMAGCHEM CORP | +86-5922680277 +86-13806087780 | sale@simagchem.com | China | 17346 | 58 |
| Hubei Ipure Biology Co., Ltd | +8613367258412 | ada@ipurechemical.com | China | 10236 | 58 |
View Lastest Price from 5,6-Dimethoxy-2-(pyridine-4-yl)methylene-indan-1-one manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2025-11-18 | 5,6-Dimethoxy-2-(pyridine-4-yl)methylene-indan-1-one
4803-74-1
|
US $1.10 / g | 1g | 99.00% | 100 Tons Min | Dideu Industries Group Limited | |
 |
2025-06-20 | 5,6-Dimethoxy-2-(pyridine-4-yl)methylene-indan-1-one
4803-74-1
|
US $100.00 / kg | 1kg | 0.99 | 20 tons | Hebei Yanxi Chemical Co., Ltd. | |
 |
2024-03-28 | 5,6-dimethoxy-2(pyridine-4-yl)methylene-indan-1-one
4803-74-1
|
US $0.00 / kg | 25kg | 98% | Inquiry | PNP Biotech Co. Ltd |
-
- 5,6-Dimethoxy-2-(pyridine-4-yl)methylene-indan-1-one
4803-74-1
- US $1.10 / g
- 99.00%
- Dideu Industries Group Limited
-
- 5,6-Dimethoxy-2-(pyridine-4-yl)methylene-indan-1-one
4803-74-1
- US $100.00 / kg
- 0.99
- Hebei Yanxi Chemical Co., Ltd.
-
- 5,6-dimethoxy-2(pyridine-4-yl)methylene-indan-1-one
4803-74-1
- US $0.00 / kg
- 98%
- PNP Biotech Co. Ltd
4803-74-1(5,6-Dimethoxy-2-(pyridine-4-yl)methylene-indan-1-one)Related Search:
2,3-dihydro-5,6-dimethoxy-2-(4-pyridinylmethylene)-1h-inden-1-one
5,6-DIMETHOXY-2-(PYRIDINE-4-YL)METHYLENE-INDAN-1-ONE
4-[(5,6-Dimethoxy-1-Indanone) -2-Methyl] Pyridine
1-Indanone,5,6-dimethoxy-2-(4-pyridylmethylene)- (7CI,8CI)
Donepezil pyridine dehydro Imp
Doneprzil Pyridine Dehydro Imp
5,6-dimethoxyl-2-(piperidin-4-y)methylene-indan-1-one
5,6-DIMETHOXY-2-(4-PYRIDYLMETHYLENE)-1-INDANONE,98.0+%
5,6-Dimethoxy-2-(4-pyridylmethylene)-1-indanone (Donepezil Impurity)
5,6-DiMethoxy-2-(pyridin-4-ylMethylene)-2,3-dihydro-1H-inden-1-one
1H-Inden-1-one,2,3-dihydro-5,6-diMethoxy-2-(4-pyridinylMethylene)-
5,6-Dimethoxy-2-(pyridine-4-yl)methylene-indan-1-one
2,3-Dihydro-5,6-dimethoxy-2-(4-pyridinylmethylene)-1H-inden-1-one
(E)-5,6-dimethoxy-2-(pyridin-4-ylmethylene)-2,3-dihydro-1H-inden-1-one
Donepezil Impurity D
Donepezil Impurity 23
Donepezil Pyridine Dehydro Impurity
5,6-Dimethoxy-2-[(4-pyridyl)methyle
5,6-Dimethoxy-2-(pyridine-4-yl)methylene-indan-1-one ISO 9001：2015 REACH
Letimovir intermediate
Donepezil Impurity 48
5,6-Dimethoxy-2-[(4-pyridyl)methylene]indan-1-one
5,6-Dimethoxy-2- (4-pyridyl) methyl-1-indenone
5,6-Dimethoxy-2(pyridine-4-yl-methelene-indane-1-one
(E)-2,3-dihydro-5,6-dimethoxy-2-((pyridin-4-yl)methylene)inden-1-one
5, 6-dimethoxy-2 -(4-pyridyl) methylene-1-indone
5,6-dimethoxy-2-(pyridin-4-ylmethylene)-2,3-dihydroinden-1-one
(E)-5,6-Dimethoxy-2-pyridin-4-ylmethylene-indan-1-one
5,6-Dimethoxy-2-(pyridin-4-ylmethylene)-2,3-dihydro-1H-inden-1-one (Donepezil Impurity)
4803-74-1
Aromatics Compounds
Aromatics
Heterocycles
Impurities
Intermediates & Fine Chemicals
Pharmaceuticals
4803-74-1
