Donepezil Impurities

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Impurity structure Parent Drug Name Name of Impurity Catalogue No. CAS No.
Deoxy Donepezil Impurity Donepezil

Deoxy Donepezil Impurity

VL173006 844694-84-4
Desbenzyl Donepezil Donepezil

Desbenzyl Donepezil

VL173012 120013-39-0
Donepenzil Impurity VII Donepezil

Donepenzil Impurity VII

VL173014 197010-22-3
Donepezil 5-O-Desmethyl Impurity Donepezil

Donepezil 5-O-Desmethyl Impurity

VE0014466 120013-57-2
Donepezil Aldehyde Impurity Donepezil

Donepezil Aldehyde Impurity

VL173015 22065-85-6
Donepezil Alkene Pyridine N-Oxide Donepezil

Donepezil Alkene Pyridine N-Oxide

VL173007 896134-06-8
Donepezil Dehydro Deoxy Impurity Donepezil

Donepezil Dehydro Deoxy Impurity

VL173005 120013-45-8
Donepezil Dihydro Impurity Donepezil

Donepezil Dihydro Impurity

VL173020 120012-04-6
Donepezil EP Impurity A Donepezil

Donepezil EP Impurity A

VE006102 120014-30-4
Donepezil EP Impurity B Donepezil

Donepezil EP Impurity B

VE005917 2107-69-9
Donepezil EP Impurity C Donepezil

Donepezil EP Impurity C

VE009893 2452407-76-8
Donepezil EP Impurity D Donepezil

Donepezil EP Impurity D

VL173003 4803-57-0
Donepezil EP Impurity E Donepezil

Donepezil EP Impurity E

VE000001 231283-82-2
Donepezil EP Impurity G (Free base) Donepezil

Donepezil EP Impurity G (Free base)

VE009253 2452407-72-4
Budesonide for System Suitability CRS (Y0001148) Donepezil

Donepezil for System Suitability CRS (Y0002165)

PVE00262 N/A
Donepezil Hydrochloride Donepezil

Donepezil Hydrochloride

VL173013 120011-70-3
Donepezil Impurity 24 Donepezil

Donepezil Impurity 24

VE0013590 N/A
Donepezil Impurity 27 (HCl) Donepezil

Donepezil Impurity 27 (HCl)

VE0014467 N/A
Donepezil Impurity 28 (HCl) Donepezil

Donepezil Impurity 28 (HCl)

VE0014468 608511-39-3
Donepezil Impurity 29 Donepezil

Donepezil Impurity 29

VE0014537 149874-80-6
Donepezil Impurity 3 Donepezil

Donepezil Impurity 3

VE0014462 1023500-88-0
Donepezil Impurity 30 Donepezil

Donepezil Impurity 30

VE0014469 149874-81-7
Donepezil Impurity 4 Donepezil

Donepezil Impurity 4

VE0014463 N/A
Donepezil Impurity 8 Donepezil

Donepezil Impurity 8

VL173019 1808997-65-0
Donepezil Impurity 9 Donepezil

Donepezil Impurity 9

VE0014464 N/A
Donepezil Impurity B Donepezil

Donepezil Impurity B

VL173004 844694-85-5
Donepezil N-Oxide Donepezil

Donepezil N-Oxide

VL173008 120013-84-5
Donepezil N-Oxide-D5 Donepezil

Donepezil N-Oxide-D5

DVE00520 N/A
Donepezil Open Ring Impurity Donepezil

Donepezil Open Ring Impurity

VL173001 197010-25-6
Donepezil Open Ring Impurity (HCl) Donepezil

Donepezil Open Ring Impurity (HCl)

VE0014458 2217617-87-1
Donepezil Pyridine Dehydro Impurity Donepezil

Donepezil Pyridine Dehydro Impurity

VL173016 4803-74-1
Donepezil Pyridine N-Oxide Donepezil

Donepezil Pyridine N-Oxide

VE006205 896134-07-9
Donepezil Related Compound A Donepezil

Donepezil Related Compound A

VL173010 145546-80-1
Donepezil-D4 (HCl Salt) Donepezil

Donepezil-D4 (HCl Salt)

DVE00517 N/A
Donepezil-D5 Donepezil

Donepezil-D5

DVE00519 1128086-25-8
Donepezil-D5 (HCl Salt) Donepezil

Donepezil-D5 (HCl Salt)

DVE00518 N/A
Donepezil-D7 (HCl Salt) Donepezil

Donepezil-D7 (HCl Salt)

DVE00521 1261394-20-0
Hydroxy Donepezil Donepezil

Hydroxy Donepezil

VL173002 197010-20-1
N-Nitroso Donepezil EP Impurity A Donepezil

N-Nitroso Donepezil EP Impurity A

VE0015851 N/A
Ticagrelor Impurity 76 Donepezil

Ticagrelor Impurity 76

VE0017561 120013-56-1
3-hydroxy donepezil Donepezil

3-hydroxy donepezil

VL173021 2097683-67-3
5-O-Desmethyl Donepezil Glucuronide (Mixture of Diastereomers) Donepezil

5-O-Desmethyl Donepezil Glucuronide (Mixture of Diastereomers)

VE0014534 220170-74-1
5-O-Desmethyl Donepezil-D5 Donepezil

5-O-Desmethyl Donepezil-D5

DVE00522 1189929-21-2
6-O-Desmethyl Donepezil Glucuronide (Na Salt) (Mixture of Diastereomers) Donepezil

6-O-Desmethyl Donepezil Glucuronide (Na Salt) (Mixture of Diastereomers)

VE0014543 N/A
6-O-Desmethyl Donepezil-D5 (HCl) Donepezil

6-O-Desmethyl Donepezil-D5 (HCl)

DVE00523 N/A