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

Product Name
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
Formula Weight
281.31
MOL File
4803-74-1.mol
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5,6-Dimethoxy-2-(pyridine-4-yl)methylene-indan-1-one Property

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)
form 
Solid
pka
5.10±0.10(Predicted)
color 
Yellow
CAS DataBase Reference
4803-74-1(CAS DataBase Reference)
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P271Use only outdoors or in a well-ventilated area.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P302+P352IF ON SKIN: wash with plenty of soap and water.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

P332+P313IF SKIN irritation occurs: Get medical advice/attention.

P337+P313IF eye irritation persists: Get medical advice/attention.

P403+P233Store in a well-ventilated place. Keep container tightly closed.

P405Store locked up.

P501Dispose of contents/container to..…

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N-Bromosuccinimide Price

TRC
Product number
D460720
Product name
5,6-Dimethoxy-2-(4-pyridylmethylene)-1-indanone(DonepezilImpurity)
Packaging
25mg
Price
$65
Updated
2021/12/16
Biosynth Carbosynth
Product number
ID22170
Product name
5,6-Dimethoxy-2-(4-pyridylmethylene)-1-indanone
Packaging
100mg
Price
$100
Updated
2021/12/16
AK Scientific
Product number
J11726
Product name
5,6-Dimethoxy-2-(4-pyridylmethylene)-1-indanone(DonepezilImpurity)
Packaging
100mg
Price
$147
Updated
2021/12/16
Biosynth Carbosynth
Product number
ID22170
Product name
5,6-Dimethoxy-2-(4-pyridylmethylene)-1-indanone
Packaging
250mg
Price
$200
Updated
2021/12/16
AK Scientific
Product number
J52235
Product name
5,6-Dimethoxy-2-(pyridine-4-yl)methylene-indan-1-one
Packaging
1g
Price
$11
Updated
2021/12/16
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5,6-Dimethoxy-2-(pyridine-4-yl)methylene-indan-1-one Chemical Properties,Usage,Production

Chemical Properties

Yellow Solid

Uses

An impurity of Donepezil.

5,6-Dimethoxy-2-(pyridine-4-yl)methylene-indan-1-one Preparation Products And Raw materials

Raw materials

Preparation Products

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5,6-Dimethoxy-2-(pyridine-4-yl)methylene-indan-1-one Suppliers

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View Lastest Price from 5,6-Dimethoxy-2-(pyridine-4-yl)methylene-indan-1-one manufacturers

PNP Biotech Co. Ltd
Product
5,6-dimethoxy-2(pyridine-4-yl)methylene-indan-1-one 4803-74-1
Price
US $0.00/kg
Min. Order
25kg
Purity
98%
Supply Ability
Inquiry
Release date
2022-10-21
Hebei Yanxi Chemical Co., Ltd.
Product
5,6-Dimethoxy-2-(pyridine-4-yl)methylene-indan-1-one 4803-74-1
Price
US $100.00/kg
Min. Order
1kg
Purity
0.99
Supply Ability
20 tons
Release date
2023-09-04
Hebei Mojin Biotechnology Co., Ltd
Product
5,6-Dimethoxy-2-(pyridine-4-yl)methylene-indan-1-one 4803-74-1
Price
US $10.00/KG
Min. Order
1KG
Purity
99%
Supply Ability
20tons
Release date
2023-06-01

4803-74-1, 5,6-Dimethoxy-2-(pyridine-4-yl)methylene-indan-1-oneRelated Search:

Dimethyldimethoxysilane Pyridine 5,6-Dimethoxy-1-indanone 1,1-Dimethoxyethane Diphenyldimethoxysilane Indan Methylene Blue Dihydromyrcenol Methyltriethoxysilane 4,4'-Diphenylmethane diisocyanate 4-Dimethylaminopyridine Methyltrimethoxysilane 4-Methylpyridine 2-[(E)-(1-BENZYL-4-PIPERIDINYL)METHYLIDENE]-5,6-DIMETHOXY-1-INDANONE 5,6-Dimethoxy-2-(piperidin-4-yl)methylene-indan-1-one XWAIAVWHZJNZQQ-RPXFAUAJSA-N Donepezil 5-O-Desmethyl Donepezil

  • 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
  • 4803-74-1
  • Aromatics Compounds
  • Aromatics
  • Heterocycles
  • Impurities
  • Intermediates & Fine Chemicals
  • Pharmaceuticals
  • 4803-74-1