Hydroxy Donepezil
CAS Number: 197010-20-1
Molecular Formula: C24H29NO4
Molecular Weight: 395.49

Donepezil EP Impurity A
CAS Number: 120014-30-4
Molecular Formula: C17H23NO3
Molecular Weight: 289.37

Acetylsalicylic Acid Impurity 6
CAS Number: 408336-10-7
Molecular Formula: C10H9NO6
Molecular Weight: 239.18

Acetylsalicylic Acid Impurity 5
CAS Number: 606-45-1
Molecular Formula: C9H10O3
Molecular Weight: 166.17

Acetylsalicylic Acid Impurity 4
CAS Number: 5026-62-0
Molecular Formula: C8H7O3. Na
Molecular Weight: 151.14 ：22.99

Acetylsalicylic Acid Impurity 3
CAS Number: 18698-59-4
Molecular Formula: C11H10O5
Molecular Weight: 222.19

Acetylsalicylic Acid Impurity 2
CAS Number: 15540-79-1
Molecular Formula: C8H7NO5
Molecular Weight: 197.14

Acetylsalicylic Acid Impurity 1
CAS Number: 318515-20-7
Molecular Formula: C12H10N2O3
Molecular Weight: 230.22