Donepezil
23 Results Found
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Donepezil API Reference standards and its EP Impurities, USP Impurities, non pharmacopeial Impurities, listed below & also offered custom synthesis for unknown Impurities. If require any contact info@drjcrbio.com, sales@drjcrbio.com
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Product Name : N-Nitroso Donepezil EP Impurity A; 5,6-dimethoxy-2-((1-nitrosopiperidin-4-yl) methyl)-2,3-dihydro-1H-inden-1-one
Code: JCDNP-23 CAS: N/A Chemical Formula: C17H22N2O4 Molecular Weight: 318.4 Category: Donepezil Reference Standards/Donepezil API Drug Metabolites/Donepezil EP Impurities/Donepezil USP Impurities Literature: Application: N-Nitroso Donepezil EP Impurity-A; 5,6-dimethoxy-2-((1-nitrosopiperidin-4-yl) methyl)-2,3-dihydro-1H-inden-1-one is useful as reference Impurity standard. 
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Product Name : Donepezil Impurity A ;(2RS)5,6-Dimethoxy-2-[(piperidin-4-yl)methyl]-2,3-dihydro-1H- indan-1-one |120014-30-4
Code: JCDNP-22 CAS: 120014-30-4 Chemical Formula:C17H23NO3 Molecular Weight:289.37 Category: Donepezil Reference Standards/Donepezil API Drug Metabolites/Donepezil EP Impurities/Donepezil USP Impurities Literature: Application: Donepezil Impurity A ;(2RS)5,6-Dimethoxy-2-[(piperidin-4-yl)methyl]-2,3-dihydro-1H- indan-1-one |120014-30-4is useful as reference Impurity standard. ![Donepezil Impurity A ;(2RS)5,6-Dimethoxy-2-[(piperidin-4-yl)methyl]-2,3-dihydro-1H- indan-1-one |120014-30-4](https://drjcrbio.com/wp-content/uploads/120014-30-4.png)
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Product Name : Deoxy donepezil ;Donepezil Deoxy Impurity; Piperidine, 4-[(2,3-dihydro-5,6-dimethoxy-1H-inden-2-yl)methyl]-1-(phenylmethyl)-; 4-[(2,3-Dihydro-5,6-dimethoxy-1H-inden-2-yl)methyl]-1-(phenylmethyl)piperidine; DeoxyDonepezil; 1-Benzyl-4-[(5,6-dimethoxyindan-2-yl)methyl]piperidine (USP) |844694-84-4
Code: JCDNP-21 CAS: 844694-84-4 Chemical Formula:C24H31NO2 Molecular Weight:365.51 Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities Literature: Application: Deoxy donepezil ;Donepezil Deoxy Impurity; Piperidine, 4-[(2,3-dihydro-5,6-dimethoxy-1H-inden-2-yl)methyl]-1-(phenylmethyl)-; 4-[(2,3-Dihydro-5,6-dimethoxy-1H-inden-2-yl)methyl]-1-(phenylmethyl)piperidine; DeoxyDonepezil; 1-Benzyl-4-[(5,6-dimethoxyindan-2-yl)methyl]piperidine (USP) |844694-84-4 is useful as reference Impurity standard. ![Deoxy donepezil ;Donepezil Deoxy Impurity; Piperidine, 4-[(2,3-dihydro-5,6-dimethoxy-1H-inden-2-yl)methyl]-1-(phenylmethyl)-; 4-[(2,3-Dihydro-5,6-dimethoxy-1H-inden-2-yl)methyl]-1-(phenylmethyl)piperidine; DeoxyDonepezil; 1-Benzyl-4-[(5,6-dimethoxyindan-2-yl)methyl]piperidine (USP) |844694-84-4](https://drjcrbio.com/wp-content/uploads/844694-84-4.png)
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Product Name : Donepezil Pyridine N-Oxide ; 5,6-Dimethoxy-2-(1-oxido-pyridin-4-ylmethyl)indan-1-one | 896134-07-9
Code: JCDNP-20 CAS: 896134-07-9 Chemical Formula: C17H17NO4 Molecular Weight: 299.32 Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities Literature: Application: Donepezil Pyridine N-Oxide ; 5,6-Dimethoxy-2-(1-oxido-pyridin-4-ylmethyl)indan-1-one | 896134-07-9 is useful as reference Impurity standard. 
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Product Name : Donepezil Pyridine Dehydro N-Oxide ; 5,6-Dimethoxy-2-(1-oxido-pyridin-4-ylmethylene)indan-1-one | 896134-06-8
Code: JCDNP-19 CAS: 896134-06-8 Chemical Formula: C17H15NO4 Molecular Weight: 297.31 Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities Literature: Application: Donepezil Pyridine Dehydro N-Oxide ; 5,6-Dimethoxy-2-(1-oxido-pyridin-4-ylmethylene)indan-1-one | 896134-06-8 is useful as reference Impurity standard. 
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Product Name : Donepezil Open-Ring Hydroxy Acid ; Donepezil Hydroxy Acid Impurity ; 2-[3-(1-Benzylpiperidin-4-yl)-2-hydroxypropyl)-4,5-dimethoxybenzoic acid
Code: JCDNP-18 CAS: NA Chemical Formula: C24H31NO5 Molecular Weight: 413.51 Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities Literature: Application: Donepezil Open-Ring Hydroxy Acid ; Donepezil Hydroxy Acid Impurity ; 2-[3-(1-Benzylpiperidin-4-yl)-2-hydroxypropyl)-4,5-dimethoxybenzoic acid is useful as reference Impurity standard. 
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Product Name : Donepezil N-Oxide ; (RS)-2-[(1-Benzyl-4-piperidyl)methyl]-5,6-dimethoxy-1-indanone N-Oxide | 120013-84-5
Code: JCDNP-17 CAS: 120013-84-5 Chemical Formula: C24H29NO4 Molecular Weight: 395.49 Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities Literature: Application:Donepezil N-Oxide ; (RS)-2-[(1-Benzyl-4-piperidyl)methyl]-5,6-dimethoxy-1-indanone N-Oxide | 120013-84-5 is useful as reference Impurity standard. ![Donepezil N-Oxide ; (RS)-2-[(1-Benzyl-4-piperidyl)methyl]-5,6-dimethoxy-1-indanone N-Oxide | 120013-84-5](http://drjcrbio.com/wp-content/uploads/dp-131.png)
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Product Name : Donepezil Desbenzyl Deoxy Impurity ; 4-[(5,6-Dimethoxyindan-2-yl)methyl] piperidine HCl | 1034439-43-4
Code: JCDNP-16 CAS: 1034439-43-4 Chemical Formula: C17H26ClNO2 Molecular Weight: 311.85 Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities Literature: Application: Donepezil Desbenzyl Deoxy Impurity ; 4-[(5,6-Dimethoxyindan-2-yl)methyl] piperidine HCl | 1034439-43-4 is useful as reference Impurity standard. ![Donepezil Desbenzyl Deoxy Impurity ; 4-[(5,6-Dimethoxyindan-2-yl)methyl] piperidine HCl | 1034439-43-4](http://drjcrbio.com/wp-content/uploads/dp-71.png)
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Product Name : Donepezil 6-O-Desmethyl Impurity ; (RS)-2-[(1-Benzyl-4-piperidyl)methyl]-6-hydroxy-5-methoxy-1-indanone | 120013-56-1
Code: JCDNP-15 CAS: 120013-57-2 Chemical Formula: C23H27NO3 Molecular Weight: 365.47 Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities Literature: Application: Donepezil 6-O-Desmethyl Impurity ; (RS)-2-[(1-Benzyl-4-piperidyl)methyl]-6-hydroxy-5-methoxy-1-indanone | 120013-56-1 is useful as reference Impurity standard. ![Donepezil 6-O-Desmethyl Impurity ; (RS)-2-[(1-Benzyl-4-piperidyl)methyl]-6-hydroxy-5-methoxy-1-indanone | 120013-56-1](http://drjcrbio.com/wp-content/uploads/dp-21.png)
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Product Name : Donepezil 5-O-Desmethyl Impurity ; (RS)-2-[(1-Benzyl-4-piperidyl)methyl]-5-hydroxy-6-methoxy-1-indanone | 120013-57-2
Code: JCDNP-14 CAS: 120013-57-2 Chemical Formula: C23H27NO3 Molecular Weight: 365.47 Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities Literature: Application: Donepezil 5-O-Desmethyl Impurity ; (RS)-2-[(1-Benzyl-4-piperidyl)methyl]-5-hydroxy-6-methoxy-1-indanone | 120013-57-2 is useful as reference Impurity standard. ![Donepezil 5-O-Desmethyl Impurity ; (RS)-2-[(1-Benzyl-4-piperidyl)methyl]-5-hydroxy-6-methoxy-1-indanone | 120013-57-2](http://drjcrbio.com/wp-content/uploads/dp-13.png)
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Product Name : Donepezil USP RC A ;Donepezil USP Related Compound A ; Donepezil Dehydro Impurity ; (E)-Dehydro Donepezil ; (E)-2-[(1-Benzylpiperidin-4-yl)methylene]-5,6-dimethoxyindan-1-one | 145546-80-1
Code: JCDNP-13 CAS: 145546-80-1 Chemical Formula: C24H27NO3 Molecular Weight: 377.48 Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities Literature: Application: Donepezil USP RC A ;Donepezil USP Related Compound A ; Donepezil Dehydro Impurity ; (E)-Dehydro Donepezil ; (E)-2-[(1-Benzylpiperidin-4-yl)methylene]-5,6-dimethoxyindan-1-one | 145546-80-1 is useful as reference Impurity standard. ![Donepezil USP RC A ;Donepezil USP Related Compound A ; Donepezil Dehydro Impurity ; (E)-Dehydro Donepezil ; (E)-2-[(1-Benzylpiperidin-4-yl)methylene]-5,6-dimethoxyindan-1-one | 145546-80-1](https://drjcrbio.com/wp-content/uploads/Donepezil-USP-RC-A-Donepezil-USP-Related-Compound-A-Donepezil-Dehydro-Impurity-E-Dehydro-Donepezil-E-2-1-Benzylpiperidin-4-ylmethylene-56-dimethoxyindan-1-one-145546-80-1.png)
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Product Name : Donepezil Pyridine Impurity ; 5,6-Dimethoxy-2-(pyridin-4-ylmethyl)indan-1-one | 4803-57-0
Code: JCDNP-12 CAS: 4803-57-0 Chemical Formula: C17H17NO3 Molecular Weight: 283.32 Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities Literature: Application: Donepezil Pyridine Impurity ; 5,6-Dimethoxy-2-(pyridin-4-ylmethyl)indan-1-one | 4803-57-0 is useful as reference Impurity standard. 
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Product Name : Donepezil Pyridine Dehydro Impurity ; 5,6-Dimethoxy-2-(pyridin-4-ylmethylene)indan-1-one | 4803-74-1
Code: JCDNP-11 CAS: 4803-74-1 Chemical Formula: C17H15NO3 Molecular Weight: 281.31 Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities Literature: Application: Donepezil Pyridine Dehydro Impurity ; 5,6-Dimethoxy-2-(pyridin-4-ylmethylene)indan-1-one | 4803-74-1 is useful as reference Impurity standard. 
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Product Name : Donepezil Open-Ring Keto Acid ; Donepezil Keto Acid Impurity ; 2-[3-(1-Benzylpiperidin-4-yl)-2-oxopropyl)-4,5-dimethoxybenzoic acid | 197010-25-6
Code: JCDNP-10 CAS: 197010-25-6 Chemical Formula: C24H29NO5 Molecular Weight: 411.49 Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities Literature: Application: Donepezil Open-Ring Keto Acid ; Donepezil Keto Acid Impurity ; 2-[3-(1-Benzylpiperidin-4-yl)-2-oxopropyl)-4,5-dimethoxybenzoic acid | 197010-25-6 is useful as reference Impurity standard. 
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Product Name : Donepezil Hydroxy Keto Impurity ; 2-[(1-Benzylpiperidin-4-yl)(hydroxy)methyl]-5,6-dimethoxyindan-1-one | 197010-20-1
Code: JCDNP-09 CAS: 197010-20-1 Chemical Formula: C24H29NO4 Molecular Weight: 395.49 Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities Literature: Application: Donepezil Hydroxy Keto Impurity ; 2-[(1-Benzylpiperidin-4-yl)(hydroxy)methyl]-5,6-dimethoxyindan-1-one | 197010-20-1 is useful as reference Impurity standard. ![Donepezil Hydroxy Keto Impurity ; 2-[(1-Benzylpiperidin-4-yl)(hydroxy)methyl]-5,6-dimethoxyindan-1-one | 197010-20-1](https://drjcrbio.com/wp-content/uploads/197010-20-1-1.png)
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Product Name : Donepezil Hydroxy Impurity ; 2-[(1-Benzylpiperidin-4-yl)hydroxymethyl]-5,6-dimethoxyindan-1-one | 197010-20-1
Code: JCDNP-08 CAS: 197010-20-1 Chemical Formula: C24H29NO4 Molecular Weight: 395.49 Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities Literature: Application: Donepezil Hydroxy Impurity ; 2-[(1-Benzylpiperidin-4-yl)hydroxymethyl]-5,6-dimethoxyindan-1-one | 197010-20-1 is useful as reference Impurity standard. ![Donepezil Hydroxy Impurity ; 2-[(1-Benzylpiperidin-4-yl)hydroxymethyl]-5,6-dimethoxyindan-1-one | 197010-20-1](https://drjcrbio.com/wp-content/uploads/197010-20-1.png)
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Product Name : Donepezil Hydrochloride ; (±)-2-[(1-Benzyl-4-piperidyl)methyl]-5,6-dimethoxy-1-indanone hydrochloride | 120011-70-3
Code: JCDNP-07 CAS: 120011-70-3 Chemical Formula: C24H30ClNO3 Molecular Weight: 415.95 Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities Literature: Application: Donepezil Hydrochloride ; (±)-2-[(1-Benzyl-4-piperidyl)methyl]-5,6-dimethoxy-1-indanone hydrochloride | 120011-70-3 is useful as reference Impurity standard. ![Donepezil Hydrochloride ; (±)-2-[(1-Benzyl-4-piperidyl)methyl]-5,6-dimethoxy-1-indanone hydrochloride | 120011-70-3](https://drjcrbio.com/wp-content/uploads/120011-70-3.png)
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Product Name : Donepezil Dihydro Impurity ; 2,3-Dihydro-5,6-dimethoxy-2-[[1-(phenylmethyl)-4-piperidinyl]methyl]-1H-inden-1-ol | 120012-04-6
Code: JCDNP-06 CAS: 120012-04-6 Chemical Formula: C24H31NO3 Molecular Weight: 381.51 Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities Literature: Application: Donepezil Dihydro Impurity ; 2,3-Dihydro-5,6-dimethoxy-2-[[1-(phenylmethyl)-4-piperidinyl]methyl]-1H-inden-1-ol | 120012-04-6 is useful as reference Impurity standard. ![Donepezil Dihydro Impurity ; 2,3-Dihydro-5,6-dimethoxy-2-[[1-(phenylmethyl)-4-piperidinyl]methyl]-1H-inden-1-ol | 120012-04-6](https://drjcrbio.com/wp-content/uploads/120012-04-6.png)
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Product Name : Donepezil Desbenzyl Impurity ;Desbenzyl Donepezil Hydrochloride (USP) ; 5,6-Dimethoxy-2-(piperidin-4-ylmethyl) indan-1-one hydrochloride | 120013-39-0
Code: JCDNP-05 CAS: 120013-39-0 Chemical Formula: C17H24ClNO3 Molecular Weight: 325.83 Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities Literature: Application: Donepezil Desbenzyl Impurity ;Desbenzyl Donepezil Hydrochloride (USP) ; 5,6-Dimethoxy-2-(piperidin-4-ylmethyl) indan-1-one hydrochloride | 120013-39-0 is useful as reference Impurity standard. 
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Product Name : Donepezil Deoxy Impurity ; 1-Benzyl-4-[(5,6-dimethoxyindan-2-yl)methyl] piperidine hydrochloride | 1034439-57-0
Code: JCDNP-04 CAS: 1034439-57-0 Chemical Formula: C24H31NO2 Molecular Weight: 365.51 Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities Literature: Application: Donepezil Deoxy Impurity ; 1-Benzyl-4-[(5,6-dimethoxyindan-2-yl)methyl] piperidine hydrochloride | 1034439-57-0 is useful as reference Impurity standard. ![Donepezil Deoxy Impurity ; 1-Benzyl-4-[(5,6-dimethoxyindan-2-yl)methyl] piperidine hydrochloride | 1034439-57-0](https://drjcrbio.com/wp-content/uploads/1034439-57-0.png)
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Product Name : Donepezil Dehydro Deoxy Impurity ;Donepezil Indene Impurity ; 1-Benzyl-4-[(5,6-dimethoxyinden-2-yl)methyl] piperidine | 120013-45-8
Code: JCDNP-03 CAS: 120013-45-8 Chemical Formula: C24H29NO2 Molecular Weight: 363.49 Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities Literature: Application: Donepezil Dehydro Deoxy Impurity ;Donepezil Indene Impurity ; 1-Benzyl-4-[(5,6-dimethoxyinden-2-yl)methyl] piperidine | 120013-45-8 is useful as reference Impurity standard. ![Donepezil Dehydro Deoxy Impurity ;Donepezil Indene Impurity ; 1-Benzyl-4-[(5,6-dimethoxyinden-2-yl)methyl] piperidine | 120013-45-8](https://drjcrbio.com/wp-content/uploads/120013-45-8.png)
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Product Name : : Donepezil Benzyl Bromide ; 1,1-Dibenzyl-4-[(5,6-dimethoxy-1-oxoindan-2-yl) methyl]piperidinium bromide | 844694-85-5
Code: JCDNP-02 CAS: 844694-85-5 Chemical Formula: C31H36BrNO3 Molecular Weight: 550.53 Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities Literature: Application: : Donepezil Benzyl Bromide ; 1,1-Dibenzyl-4-[(5,6-dimethoxy-1-oxoindan-2-yl) methyl]piperidinium bromide | 844694-85-5 is useful as reference Impurity standard. ![: Donepezil Benzyl Bromide ; 1,1-Dibenzyl-4-[(5,6-dimethoxy-1-oxoindan-2-yl) methyl]piperidinium bromide | 844694-85-5](https://drjcrbio.com/wp-content/uploads/844694-85-5.png)
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Product Name : Donepezil Aldehyde Impurity ; (RS)-(1-Benzyl-piperidin-4-yl)formaldehyde | 22065-85-6
Code: JCDNP-01 CAS: 22065-85-6 Chemical Formula: C13H17NO Molecular Weight: 203.28 Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities Literature: Application: Donepezil Aldehyde Impurity ; (RS)-(1-Benzyl-piperidin-4-yl)formaldehyde | 22065-85-6 is useful as reference Impurity standard. 
