Donepezil Impurity Standards | EP USP

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Donepezil 3-Hydroxy Impurity

Chemical Name: 2-((1-Benzylpiperidin-4-yl)methyl)-3-hyd...

CAS No:
2097683-67-3

Molecular Formula: C24H29NO4

Molecular Weight: 395.49

CAT No:
ALL-D02915

Keywords: Donepezil 3-Hydroxy Impurity

Inventory Status:IN STOCK/82-1420

COA MSDS

Donepezil 4-Hydroxy Impurity

Chemical Name: 2,3-Dihydro-2-[[4-hydroxy-1-(phenylmethy...

CAS No:
197010-22-3

Molecular Formula: C24H29NO4

Molecular Weight: 395.49

CAT No:
ALL-DON-2055

Keywords: Donepezil 4-Hydroxy Impurity, 2,3-Dihydr...

Inventory Status:IN STOCK/82-1421

COA MSDS

Donepezil 5-O-Desmethyl Impurity

Chemical Name: (RS)-2-[(1-Benzyl-4-piperidyl)methyl]-5-...

CAS No:
120013-57-2

Molecular Formula: C23H27NO3

Molecular Weight: 365.47

CAT No:
ALL-DON-2056

Keywords: Donepezil 5-O-Desmethyl Impurity, (RS)-2...

Inventory Status:IN STOCK/82-1422

COA MSDS

Donepezil 6-O-Desmethyl Impurity

Chemical Name: (RS)-2-[(1-Benzyl-4-piperidyl)methyl]-6-...

CAS No:
120013-56-1

Molecular Formula: C23H27NO3

Molecular Weight: 365.47

CAT No:
ALL-DON-2057

Keywords: Donepezil 6-O-Desmethyl Impurity, (RS)-2...

Inventory Status:IN STOCK/82-1423

COA MSDS

Donepezil Aldehyde Impurity

Chemical Name: (RS)-(1-Benzyl-piperidin-4-yl)formaldehy...

CAS No:
22065-85-6

Molecular Formula: C13H17NO

Molecular Weight: 203.28

CAT No:
ALL-DON-2058

Keywords: Donepezil Aldehyde Impurity, Donepezil A...

Inventory Status:IN STOCK/82-1424

COA MSDS

Donepezil Alkene Pyridine N-Oxide

Chemical Name: 4-[(5,6-Dimethoxy-1-oxo-1H-inden-2-yl)me...

CAS No:
896134-06-8

Molecular Formula: C17H15NO4

Molecular Weight: 297.31

CAT No:
ALL-DON-2059

Keywords: Donepezil Pyridine Dehydro N-Oxide

Inventory Status:IN STOCK/82-1425

COA MSDS

Donepezil Benzyl Bromide

Chemical Name: 1,1-Dibenzyl-4-[(5,6-dimethoxy-1-oxoinda...

CAS No:
844694-85-5

Molecular Formula: C31H36BrNO3

Molecular Weight: 550.53

CAT No:
ALL-DON-2060

Keywords: Donepezil Quaternary Salt (USP)

Inventory Status:IN STOCK/82-1427

COA MSDS

Donepezil Dehydro Deoxy Impurity

Chemical Name: 1-Benzyl-4-[(5,6-dimethoxyinden-2-yl)met...

CAS No:
120013-45-8

Molecular Formula: C24H29NO2

Molecular Weight: 363.49

CAT No:
ALL-DON-2061

Keywords: Donepezil Dehydro Deoxy Impurity

Inventory Status:IN STOCK/82-1428

COA MSDS

Donepezil Deoxy Impurity

Chemical Name: 1-Benzyl-4-[(5,6-dimethoxyindan-2-yl)met...

CAS No:
844694-84-4 (Base) | 1034439-57-0 (HCl Salt)

Molecular Formula: C24H31NO2

Molecular Weight: 365.5

CAT No:
ALL-D03128

Keywords: Donepezil Deoxy Impurity, Donepezil Deox...

Inventory Status:IN STOCK/82-1426

COA MSDS

Donepezil Desbenzyl Deoxy Impurity

Chemical Name: 4-[(5,6-Dimethoxyindan-2-yl)methyl] pipe...

CAS No:
1034439-43-4 (HCl salt) | 844694-83-3 (Base)

Molecular Formula: C17H25NO2

Molecular Weight: 275.39

CAT No:
ALL-DON-2063

Keywords: Donepezil Desbenzyl Deoxy Impurity

Inventory Status:IN STOCK/82-1429

COA MSDS

Donepezil Didesmethyl Impurity

Chemical Name: (RS)-2-[(1-Benzyl-4-piperidyl)methyl]-5,...

CAS No:
220170-71-8

Molecular Formula: C22H25NO3 (Base)

Molecular Weight: 351.44

CAT No:
ALL-DON-2064

Keywords: Donepezil Didesmethyl Impurity, (RS)-2-[...

Inventory Status:IN STOCK/82-1430

COA MSDS

Donepezil Dihydro Impurity

Chemical Name: 2,3-Dihydro-5,6-dimethoxy-2-[[1-(phenylm...

CAS No:
120012-04-6

Molecular Formula: C24H31NO3

Molecular Weight: 381.51

CAT No:
ALL-DON-2065

Keywords: Donepezil Dihydro Impurity, 2,3-Dihydro-...

Inventory Status:IN STOCK/82-1431

COA MSDS

Donepezil EP Impurity A

Chemical Name: 5,6-Dimethoxy-2-(piperidin-4-ylmethyl) i...

CAS No:
120013-39-0 (HCl) | 120014-30-4 (Base)

Molecular Formula: C17H24ClNO3

Molecular Weight: 325.83

CAT No:
ALL-DON-2067

Keywords: Donepezil Desbenzyl Impurity

Inventory Status:IN STOCK/82-1432

COA MSDS

Donepezil EP Impurity B

Chemical Name: 5,6-Dimethoxy-1-indanone

CAS No:
2107-69-9

Molecular Formula: C11H12O3

Molecular Weight: 192.2

CAT No:
ALL-DON-2108

Keywords: Donepezil Indanone Impurity

Inventory Status:IN STOCK/82-1433

COA MSDS

Donepezil EP Impurity C | Donepezil Hydroxy Keto Impurity

Chemical Name: 2-[(1-Benzylpiperidin-4-yl)(hydroxy)meth...

CAS No:
197010-20-1

Molecular Formula: C24H29NO4

Molecular Weight: 395.49

CAT No:
ALL-DON-2068

Keywords: Hydroxy Donepezil

Inventory Status:IN STOCK/82-1434

COA MSDS

Donepezil EP Impurity D | Donepezil Pyridine Analog

Chemical Name: 5,6-Dimethoxy-2-(pyridin-4-ylmethyl)inda...

CAS No:
4803-57-0

Molecular Formula: C17H17NO3

Molecular Weight: 283.32

CAT No:
ALL-DON-2069

Keywords: Donepezil Pyridine Analog (USP)

Inventory Status:IN STOCK/82-1435

COA MSDS

Donepezil EP Impurity E | Donepezil Impurity 2

Chemical Name: 1-Benzyl-4-(5,6-dimethoxy-1-oxoindan-2-y...

CAS No:
231283-82-2

Molecular Formula: C24H24BrNO3

Molecular Weight: 454.36

CAT No:
ALL-DON-2085

Keywords: Donepezil EP Impurity E | Donepezil Impu...

Inventory Status:IN STOCK/82-1436

COA MSDS

Donepezil EP Impurity F | Donepezil USP RC A

Chemical Name: (E)-2-[(1-Benzylpiperidin-4-yl)methylene...

CAS No:
145546-80-1

Molecular Formula: C24H27NO3

Molecular Weight: 377.48

CAT No:
ALL-DON-2071

Keywords: (E)-Dehydro Donepezil

Inventory Status:IN STOCK/82-1437

COA MSDS

Donepezil EP Impurity G

Chemical Name: 2-((1-Benzyl-1,2,3,4-tetrahydropyridin-4...

CAS No:
2452407-72-4

Molecular Formula: C24H27NO3

Molecular Weight: 377.48

CAT No:
ALL-DON-2107

Keywords: Donepezil EP Impurity G | Allmpus

Inventory Status:IN STOCK/82-1438

COA MSDS

Donepezil Hydrochloride

Chemical Name: 2-[(1-benzylpiperidin-4-yl)methyl]-5,6-d...

CAS No:
120011-70-3

Molecular Formula: C24H30ClNO3

Molecular Weight: 415.95

CAT No:
ALL-DON-2066

Keywords: Donepezil Hydrochloride

Inventory Status:IN STOCK/82-1439

COA MSDS

Donepezil Impurity 1

Chemical Name: 2,3-Dihydro-5,6-dimethoxy-2-(4-pyridinyl...

CAS No:
923571-15-7

Molecular Formula: C17H15NO4

Molecular Weight: 297.31

CAT No:
ALL-DON-2084

Keywords: Donepezil Impurity 1

Inventory Status:IN STOCK/82-1440

COA MSDS

Donepezil Impurity 3

Chemical Name: 2-((1-Benzylpiperidin-4-yl)methyl)-6,7-d...

CAS No:
120013-51-6 (HCl) | 736104-42-0 (Base)

Molecular Formula: C24H30ClNO3

Molecular Weight: 415.95

CAT No:
ALL-DON-2086

Keywords: Donepezil Impurity 3

Inventory Status:IN STOCK/82-1441

COA MSDS

Donepezil Impurity 4

Chemical Name: (E)-5,6-Dimethoxy-2-(pyridin-4-ylmethyle...

CAS No:
877606-65-0

Molecular Formula: C17H15NO3

Molecular Weight: 281.31

CAT No:
ALL-DON-2087

Keywords: Donepezil Impurity 4

Inventory Status:IN STOCK/82-1442

COA MSDS

Donepezil N-Oxide

Chemical Name: (RS)-2-[(1-Benzyl-4-piperidyl)methyl]-5,...

CAS No:
120013-84-5

Molecular Formula: C24H29NO4

Molecular Weight: 395.49

CAT No:
ALL-DON-2070

Keywords: (RS)-2-[(1-Benzyl-4-piperidyl)methyl]-5,...

Inventory Status:IN STOCK/82-1443

COA MSDS

Donepezil Pyridine Dehydro Impurity

Chemical Name: 5,6-Dimethoxy-2-(pyridin-4-ylmethylene)i...

CAS No:
4803-74-1

Molecular Formula: C17H15NO3

Molecular Weight: 281.31

CAT No:
ALL-DON-2074

Keywords: Donepezil Pyridine Dihydro Impurity

Inventory Status:IN STOCK/82-1444

COA MSDS

Donepezil Pyridine N-Oxide

Chemical Name: 5,6-Dimethoxy-2-(1-oxido-pyridin-4-ylmet...

CAS No:
896134-07-9

Molecular Formula: C17H17NO4

Molecular Weight: 299.32

CAT No:
ALL-DON-2072

Keywords: Donepezil Pyridine N-Oxide, 5,6-Dimethox...

Inventory Status:IN STOCK/82-1446

COA MSDS