Clearsynth is a leading innovator in pharmaceutical reference standards, offering high-quality Reference Standards for Donepezil, including both pharmacopeial and non-pharmacopeial impurities, metabolites, stable isotope products, and nitrosamines (N-NO products). Our Donepezil impurity reference standards are invaluable for pharmaceutical research, supporting product development, ANDA and DMF submissions, quality control (QC), method validation, and stability studies. They also aid in identifying unknown impurities and assessing genotoxic potential.
Our Donepezil-related products undergo thorough characterization and are supplied with detailed Certificates of Analysis (COA) and analytical data that meet regulatory requirements. All supplied products are re-tested at regular intervals to ensure ongoing quality and compliance.
Our Donepezil-related products undergo thorough characterization and are supplied with detailed Certificates of Analysis (COA) and analytical data that meet regulatory requirements. All supplied products are re-tested at regular intervals to ensure ongoing quality and compliance.
Donepezil Related Compounds
Stable Isotopes
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| 6-O-Desmethyl Donepezil-d5 | Stable Isotopes | CS-T-95243 | 1189443-74-0 | Enquire |
| Desbenzyl Donepezil-13C3 | Stable Isotopes | CS-T-101090 | Not Available | Enquire |
| Donepezil-13C3 Hydrochloride | Stable Isotopes | CS-T-95704 | 1246814-90-3 | Enquire |
| Donepezil-13C6 | Stable Isotopes | CS-T-103402 | 120014-06-4(unlabelled) | Enquire |
| Donepezil-d4 Hydrochloride | Stable Isotopes | CS-EV-00005 | 1219798-88-5 | Enquire |
API Standards
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| Donepezil hydrochloride monohydrate | API Standards | CS-ED-01036 | 884740-09-4 | In Stock |
Metabolites
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| 6-O-Desmethyl Donepezil | Metabolites | CS-O-05855 | 120013-56-1 | In Stock |
| Donepezil N-Oxide | Metabolites | CS-O-07802 | 120013-84-5 | In Stock |
Impurities
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| (2E)-Dehydrodonepezil | Impurities | CS-T-14924 | 145546-80-1 | In Stock |
| 1-benzyl-4-((1,5,6-trimethoxy-1H-inden-2-yl)methyl)piperidin... | Impurities | CS-O-36060 | Not Available | In Stock |
| 5,6-Dimethoxy-2-(1,2,3,6-tetrahydropyridin-4-ylmethyl)-2,3-d... | Impurities | CS-O-38607 | Not Available | Enquire |
| Donepenil EP Impurity C | Impurities | CS-EO-00372 | Not Available | Enquire |
| Donepezil Alkene Pyridine N-oxide | Impurities | CS-O-36723 | 2452407-68-8 | Enquire |
| Donepezil alkene pyridine N-Oxide | Impurities | CS-T-90594 | 896134-06-8 | In Stock |
| Donepezil Dehydro Impurity | Impurities | CS-T-05590 | 120014-07-5 | In Stock |
| Donepezil EP Impurity A | Impurities | CS-O-10626 | 120014-30-4 | In Stock |
| Donepezil EP Impurity C | Impurities | CS-EO-01717 | 2452407-76-8 | Enquire |
| Donepezil EP Impurity G | Impurities | CS-EO-01080 | 2452407-72-4 | Enquire |
| Donepezil Impurity 13 | Impurities | CS-EO-02285 | 608511-44-0 | Enquire |
| Donepezil Impurity G HCl | Impurities | CS-O-35676 | 608511-39-3 | In Stock |
| Donepezil open ring impurity | Impurities | CS-T-06261 | 197010-25-6 | In Stock |
| Donepezil Open Ring Impurity (sodium salt) | Impurities | CS-EO-03500 | 197010-25-6 (Freebase) | Enquire |
| Donepezil Open Ring Impurity HCl salt | Impurities | CS-O-51631 | 2217617-87-1 | Enquire |
| Donepezil pyridine analog | Impurities | CS-T-53345 | 4803-57-0 | In Stock |
| Hydroxy Donepezil (Mixture of Diastereomers) | Impurities | CS-T-27250 | 197010-20-1 | In Stock |
EP Standards
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| Donepezil for system suitability (Y0002165) | EP Standards | CS-EG-00842 | Not Available | Enquire |
| Donepezil hydrochloride (Y0002160) | EP Standards | CS-EG-00848 | 120011-70-3 | Enquire |
Intermediates
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| 5,6-Dimethoxy-1-indanone | Intermediates | CS-M-56599 | 2107-69-9 | In Stock |