Donepezil

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Pharmaceutical Reference Standards

Donepezil

CAT. No.	CP-D2000
CAS. No.	120014-06-4
Mol. F.	C24H29NO3
Mol. Wt.	379.5
Stock Status:	Custom Synthesis

Donepezil EP Impurity A

CAT. No.	CP-D2001
CAS. No.	120014-30-4
Mol. F.	C17H23NO3
Mol. Wt.	289.38
Stock Status:	Custom Synthesis

Rel. Cas No: 120013-39-0(HCl salt)

Donepezil EP Impurity B

CAT. No.	CP-D2002
CAS. No.	2107-69-9
Mol. F.	C11H12O3
Mol. Wt.	192.21
Stock Status:	In Stock

Donepezil EP Impurity C

CAT. No.	CP-D2003
CAS. No.	NA
Mol. F.	C24H29NO4
Mol. Wt.	395.49
Stock Status:	Custom Synthesis

Donepezil EP Impurity D

CAT. No.	CP-D2004
CAS. No.	4803-57-0
Mol. F.	C17H17NO3
Mol. Wt.	283.33
Stock Status:	Custom Synthesis

Donepezil EP Impurity E

CAT. No.	CP-D2005
CAS. No.	231283-82-2
Mol. F.	C24H24NO3 : Br
Mol. Wt.	374.5 : 79.9
Stock Status:	In Stock

Rel. Cas No: 757173-38-9 (free base)

Donepezil EP Impurity G

CAT. No.	CP-D2007
CAS. No.	2452407-72-4
Mol. F.	C24H27NO3
Mol. Wt.	377.48
Stock Status:	In Stock

Donepezil EP Impurity F

CAT. No.	CP-D2008
CAS. No.	145546-80-1
Mol. F.	C24H27NO3
Mol. Wt.	377.48
Stock Status:	In Stock

Donepezil N-Oxide

CAT. No.	CP-D2009
CAS. No.	120013-84-5
Mol. F.	C24H29NO4
Mol. Wt.	395.49
Stock Status:	In Stock

Dehydrodeoxy Donepezil

CAT. No.	CP-D2010
CAS. No.	120013-45-8
Mol. F.	C24H29NO2
Mol. Wt.	363.49
Stock Status:	In Stock

Donepezil Pyridine Dehydro N-Oxide

CAT. No.	CP-D2011
CAS. No.	896134-06-8
Mol. F.	C17H15NO4
Mol. Wt.	297.31
Stock Status:	In Stock

Donepezil Open ring Impurity

CAT. No.	CP-D2012
CAS. No.	197010-25-6
Mol. F.	C24H29NO5
Mol. Wt.	411.50
Stock Status:	In Stock

Rel. Cas No: 2217617-87-1 (HCl salt)

Donepezil Dihydro Impurity

CAT. No.	CP-D2014
CAS. No.	120012-04-6
Mol. F.	C24H31NO3
Mol. Wt.	381.52
Stock Status:	Custom Synthesis

Donepezil Aldehyde Impurity

CAT. No.	CP-D2015
CAS. No.	22065-85-6
Mol. F.	C13H17NO
Mol. Wt.	203.28
Stock Status:	Custom Synthesis

Donepezil Benzyl Bromide

CAT. No.	CP-D2016
CAS. No.	844694-85-5
Mol. F.	C31H36NO3 : Br
Mol. Wt.	470.6:79.9
Stock Status:	In Stock

Rel. Cas No: 845252-34-8 (free base)

Donepezil Deoxy Impurity

CAT. No.	CP-D2017
CAS. No.	1034439-57-0
Mol. F.	C24H31NO2 : HCl
Mol. Wt.	365.5 : 36.5
Stock Status:	Custom Synthesis

Rel. Cas No: 110119-84-1 (anhydrous) ; 884740-09-4 (monohydrate)

Donepezil Hydrochloride

CAT. No.	CP-D2018
CAS. No.	120011-70-3
Mol. F.	C24H29NO3 : HCl
Mol. Wt.	379.5 : 36.46
Stock Status:	In Stock

Rel. Cas No: 110119-84-1 (anhydrous) ; 884740-09-4 (monohydrate)

Donepezil 6-O-Desmethyl Impurity

CAT. No.	CP-D2019
CAS. No.	120013-56-1
Mol. F.	C23H27NO3
Mol. Wt.	365.47
Stock Status:	Custom Synthesis

Donepezil Deoxy

CAT. No.	CP-D2020
CAS. No.	844694-84-4
Mol. F.	C24H31NO2
Mol. Wt.	365.51
Stock Status:	Custom Synthesis

Donepezil Didesmethyl Impurity

CAT. No.	CP-D2021
CAS. No.	220170-71-8
Mol. F.	C22H25NO3
Mol. Wt.	351.45
Stock Status:	Custom Synthesis

N-Nitroso Donepezil EP Impurity A

CAT. No.	CP-D2023
CAS. No.	NA
Mol. F.	C17H22N2O4
Mol. Wt.	318.37
Stock Status:	In Stock

Donepezil Impurity 13

CAT. No.	CP-D2025
CAS. No.	608511-44-0
Mol. F.	C24H27NO3
Mol. Wt.	377.48
Stock Status:	Custom Synthesis

Donepezil Impurity 18

CAT. No.	CP-D2026
CAS. No.	110406-97-8
Mol. F.	C11H15ClO2
Mol. Wt.	214.69
Stock Status:	Custom Synthesis

Donepezil Impurity 19

CAT. No.	CP-D2027
CAS. No.	50786-50-0
Mol. F.	C11H15ClO3
Mol. Wt.	230.69
Stock Status:	Custom Synthesis

Donepezil Impurity 21

CAT. No.	CP-D2028
CAS. No.	4693-38-3
Mol. F.	C11H13ClO3
Mol. Wt.	228.67
Stock Status:	Custom Synthesis

Donepezil Pyridine Dehydro Impurity

CAT. No.	CP-D2029
CAS. No.	4803-74-1
Mol. F.	C17H15NO3
Mol. Wt.	281.31
Stock Status:	In Stock

Donepezil Pyridine N-Oxide

CAT. No.	CP-D2030
CAS. No.	896134-07-9
Mol. F.	C17H17NO4
Mol. Wt.	299.33
Stock Status:	Custom Synthesis

1-(3,4-Dimethoxyphenyl)-3-hydroxypropan-1-one

CAT. No.	CP-D2032
CAS. No.	104397-78-6
Mol. F.	C11H14O4
Mol. Wt.	210.23
Stock Status:	Custom Synthesis

1,2-Dimethoxy-4-propylbenzene

CAT. No.	CP-D2033
CAS. No.	5888-52-8
Mol. F.	C11H16O2
Mol. Wt.	180.24
Stock Status:	Custom Synthesis

Donepezil Hydroxy Acid Impurity

CAT. No.	CP-D2034
CAS. No.	NA
Mol. F.	C24H31NO5
Mol. Wt.	413.51
Stock Status:	Custom Synthesis

Donepezil 4-Hydroxy Impurity

CAT. No.	CP-D2035
CAS. No.	197010-22-3
Mol. F.	C24H29NO4
Mol. Wt.	395.5
Stock Status:	Custom Synthesis

Donepezil 5-O-Desmethyl Impurity

CAT. No.	CP-D2036
CAS. No.	120013-57-2
Mol. F.	C23H27NO3
Mol. Wt.	365.47
Stock Status:	Custom Synthesis

Donepezil 3-Hydroxy Impurity

CAT. No.	CP-D2037
CAS. No.	2097683-67-3
Mol. F.	C24H29NO4
Mol. Wt.	395.5
Stock Status:	Custom Synthesis

Donepezil Alkene Pyridine N-Oxide

CAT. No.	CP-D2038
CAS. No.	2452407-68-8
Mol. F.	C17H151NO4
Mol. Wt.	297.31
Stock Status:	Custom Synthesis

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

CAT. No.	CP-D2039
CAS. No.	220170-73-0
Mol. F.	C29H35NO9
Mol. Wt.	541.6
Stock Status:	Custom Synthesis

Donepezil Impurity 2

CAT. No.	CP-D2040
CAS. No.	36517-91-6
Mol. F.	C11H10O4
Mol. Wt.	206.2
Stock Status:	Custom Synthesis

3-Keto Donepezil

CAT. No.	CP-D2041
CAS. No.	1023500-88-0
Mol. F.	C24H27NO4
Mol. Wt.	393.5
Stock Status:	Custom Synthesis

Donepezil Impurity 4

CAT. No.	CP-D2042
CAS. No.	2452407-69-9
Mol. F.	C24H29NO3
Mol. Wt.	379.5
Stock Status:	Custom Synthesis

Donepezil Impurity 8

CAT. No.	CP-D2043
CAS. No.	1808997-65-0
Mol. F.	C18H23NO4
Mol. Wt.	317.4
Stock Status:	Custom Synthesis

Donepezil Impurity 9

CAT. No.	CP-D2044
CAS. No.	2452407-71-3
Mol. F.	C26H33NO4
Mol. Wt.	423.6
Stock Status:	Custom Synthesis

Donepezil Impurity 11

CAT. No.	CP-D2045
CAS. No.	2230493-73-7
Mol. F.	C24H27NO3
Mol. Wt.	377.5
Stock Status:	Custom Synthesis

Donepezil Impurity 14

CAT. No.	CP-D2046
CAS. No.	329010-67-5
Mol. F.	C24H29NO4
Mol. Wt.	395.5
Stock Status:	Custom Synthesis

Donepezil Impurity 16

CAT. No.	CP-D2047
CAS. No.	1034439-43-4
Mol. F.	C17H25NO2 : HCl
Mol. Wt.	275.4 : 36.46
Stock Status:	Custom Synthesis

Rel. Cas No: 844694-83-3 (free base)

Donepezil Hydrochloride Monohydrate

CAT. No.	CP-D2048
CAS. No.	884740-09-4
Mol. F.	C24H29NO3 : HCl : H2O
Mol. Wt.	379.5 : 36.46 : 18.0
Stock Status:	Custom Synthesis

Rel. Cas No: 120014-06-4 (free base) ; 120011-70-3 (HCl salt) ; 794512-61-1 (HBr salt)

Donepezil Impurity 23

CAT. No.	CP-D2049
CAS. No.	67686-01-5
Mol. F.	C13H19NO
Mol. Wt.	205.3
Stock Status:	Custom Synthesis

Rel. Cas No: 121183-26-4 (HCl salt)

Donepezil Impurity 24

CAT. No.	CP-D2050
CAS. No.	2905-56-8
Mol. F.	C12H17N
Mol. Wt.	175.3
Stock Status:	Custom Synthesis

Donepezil Impurity 25

CAT. No.	CP-D2051
CAS. No.	24228-40-8
Mol. F.	C15H21NO2
Mol. Wt.	247.3
Stock Status:	Custom Synthesis

Rel. Cas No: 111627-24-8 (HCl salt)

Donepezil Impurity 27

CAT. No.	CP-D2052
CAS. No.	923571-15-7
Mol. F.	C17H15NO4
Mol. Wt.	297.3
Stock Status:	Custom Synthesis

N-Nitroso Donepezil 2-Ethylbutyl Impurity

CAT. No.	CP-D2053
CAS. No.	NA
Mol. F.	C24H30N2O4
Mol. Wt.	410.51
Stock Status:	Custom Synthesis

N-Nitroso Donepezil EP Impurity A

CAT. No.	CP-D2054
CAS. No.	NA
Mol. F.	C17H24N2O3
Mol. Wt.	304.39
Stock Status:	Custom Synthesis

Hydroxy Donepezil (Mixture of diastereomers)

CAT. No.	CP-D2055
CAS. No.	197010-20-1
Mol. F.	C24H29NO4
Mol. Wt.	395.5
Stock Status:	In Stock

a b c d e f g h i j k l m n o p q r s t u v w x y z

Donepezil

Pharmaceutical Reference Standards

Donepezil

Donepezil EP Impurity A

Donepezil EP Impurity B

Donepezil EP Impurity C

Donepezil EP Impurity D

Donepezil EP Impurity E

Donepezil EP Impurity G

Donepezil EP Impurity F

Donepezil N-Oxide

Dehydrodeoxy Donepezil

Donepezil Pyridine Dehydro N-Oxide

Donepezil Open ring Impurity

Donepezil Dihydro Impurity

Donepezil Aldehyde Impurity

Donepezil Benzyl Bromide

Donepezil Deoxy Impurity

Donepezil Hydrochloride

Donepezil 6-O-Desmethyl Impurity

Donepezil Deoxy

Donepezil Didesmethyl Impurity

N-Nitroso Donepezil EP Impurity A

Donepezil Impurity 13

Donepezil Impurity 18

Donepezil Impurity 19

Donepezil Impurity 21

Donepezil Pyridine Dehydro Impurity

Donepezil Pyridine N-Oxide

1-(3,4-Dimethoxyphenyl)-3-hydroxypropan-1-one

1,2-Dimethoxy-4-propylbenzene

Donepezil Hydroxy Acid Impurity

Donepezil 4-Hydroxy Impurity

Donepezil 5-O-Desmethyl Impurity

Donepezil 3-Hydroxy Impurity

Donepezil Alkene Pyridine N-Oxide

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

Donepezil Impurity 2

3-Keto Donepezil

Donepezil Impurity 4

Donepezil Impurity 8

Donepezil Impurity 9

Donepezil Impurity 11

Donepezil Impurity 14

Donepezil Impurity 16

Donepezil Hydrochloride Monohydrate

Donepezil Impurity 23

Donepezil Impurity 24

Donepezil Impurity 25

Donepezil Impurity 27

N-Nitroso Donepezil 2-Ethylbutyl Impurity

N-Nitroso Donepezil EP Impurity A

Hydroxy Donepezil (Mixture of diastereomers)