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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.

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
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
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-T-90594 896134-06-8 In Stock
Donepezil Alkene Pyridine N-oxide Impurities CS-O-36723 2452407-68-8 Enquire
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