API Impurities
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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