Clearsynth is a leading innovator in pharmaceutical reference standards, offering high-quality Reference Standards for Darifenacin, including both pharmacopeial and non-pharmacopeial impurities, metabolites, stable isotope products, and nitrosamines (N-NO products). Our Darifenacin 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 Darifenacin-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 Darifenacin-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.
Darifenacin Related Compounds
Stable Isotopes
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| (R)​-​Darifenacin-d4 | Stable Isotopes | CS-T-73395 | 1261734-81-9 | Enquire |
| (R)-Darifenacin-d4 Hydrobromide | Stable Isotopes | CS-T-51610 | 1261394-25-5 | Enquire |
| Darifenacin-d4 | Stable Isotopes | CS-P-07657 | 1095598-84-7 | In Stock |
| Darifenacin-d4 Hydrobromide | Stable Isotopes | CS-O-00698 | 2714474-01-6 | In Stock |
| Darifenacin-d4 Hydrochloride | Stable Isotopes | CS-O-03226 | 1095598-84-7 (Freebase) | In Stock |
| rac Darifenacin-d4 | Stable Isotopes | CS-T-73883 | 1189701-43-6 | Enquire |
API Standards
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| Darifenacin | API Standards | CS-O-14949 | 133099-04-4 | Enquire |
| Darifenacin Hydrobromide | API Standards | CS-O-01267 | 133099-07-7 | In Stock |
Metabolites
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| 7-Bromo Darifenacin | Metabolites | CS-O-15283 | 1391080-43-5 | In Stock |
| Darifenacin N-Oxide (Mixture of Diasteromers) | Metabolites | CS-O-14951 | 1391080-40-2 | In Stock |
Impurities
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| (N-((S)-3(2-amino-2oxo-1,1diphenylethyl)pyrrolidin-1-yl)-2-(... | Impurities | CS-O-31174 | Not Available | Enquire |
| (R)-Darifenacin | Impurities | CS-T-51609 | 133099-05-5 | Enquire |
| (R)-Darifenacin Hydrobromide | Impurities | CS-T-51608 | 1092800-15-1 | Enquire |
| 2-(1-nitrosopyrrolidin-3-yl)-2,2-diphenylacetamide | Impurities | CS-O-46481 | Not Available | Enquire |
| 2-Oxodarifenacin | Impurities | CS-T-83995 | 133034-08-9 | Enquire |
| 7-Bromo Darifenacin Hydrochloride | Impurities | CS-O-16125 | *1391080-43-5 | Enquire |
| Darifenacin 3-Hydroxy Impurity | Impurities | CS-O-16063 | 206048-82-0 | Enquire |
| Darifenacin 4-Hydroxy Impurity | Impurities | CS-O-15719 | 2468796-89-4 | Enquire |
| Darifenacin 7-Bromo Analog | Impurities | CS-O-15721 | 1391080-43-5 | Enquire |
| Darifenacin 7-Bromoethyl Impurity | Impurities | CS-O-15715 | 1598271-92-1 | In Stock |
| Darifenacin acid | Impurities | CS-O-15990 | 1048979-16-3 | Enquire |
| Darifenacin Carboxylic Acid Impurity | Impurities | CS-O-15716 | 1048979-16-3 | Enquire |
| Darifenacin Cyano Impurity | Impurities | CS-O-07749 | 1159977-31-7 | Enquire |
| Darifenacin Cyclic Amide-Impurity E | Impurities | CS-O-31173 | 1797983-04-0 | In Stock |
| Darifenacin Dehydro Impurity | Impurities | CS-O-07750 | 943034-52-4 | In Stock |
| Darifenacin Dimer-1 Impurity | Impurities | CS-O-07751 | Not Available | Enquire |
| Darifenacin Dimer-2 Impurity | Impurities | CS-O-07752 | Not Available | Enquire |
| Darifenacin Impurity 10 (Tartarate salt) | Impurities | CS-EO-03470 | 1092540-94-7 | Enquire |
| Darifenacin Impurity 11 | Impurities | CS-EO-01949 | 1229355-35-4 | Enquire |
| Darifenacin Impurity 6 | Impurities | CS-O-16065 | 133034-07-8 | In Stock |
| Darifenacin Impurity B | Impurities | CS-O-07747 | 127264-14-6 | In Stock |
| Darifenacin Impurity C | Impurities | CS-O-10800 | 252317-48-9 | In Stock |
| Darifenacin Nitrile Impurity | Impurities | CS-O-15761 | 608127-89-5 | In Stock |
| Darifenacin Nitrile Impurity (HCl) | Impurities | CS-EO-03468 | 252317-48-9 (Freebase) | Enquire |
| Darifenacin nitroso impurity | Impurities | CS-O-43262 | Not Available | In Stock |
| Darifenacin Open chain | Impurities | CS-O-16014 | Not Available | In Stock |
| Darifenacin Oxidized Impurity | Impurities | CS-P-07660 | 133033-99-5 | Enquire |
| Darifenacin Pyrrolidin Carboxylic Acid Impurity | Impurities | CS-O-15722 | 1050646-75-7 | In Stock |
| Darifenacin Pyrrolidine Impurity Racemate | Impurities | CS-O-07754 | 103887-32-7 | Enquire |
| Darifenacin Pyrrolidinium Dimer Acetonitrile Impurity | Impurities | CS-O-15821 | Not Available | In Stock |
| Darifenacin Pyrrolidinium Dimer Impurity | Impurities | CS-O-15717 | 1396968-57-2 | Enquire |
| Darifenacin R-Isomer (HCl) | Impurities | CS-EO-03466 | 133099-05-5 (Freebase) | Enquire |
| Darifenacin Vinylbenzofuran Impurity | Impurities | CS-O-15720 | 633335-98-5 | In Stock |
Intermediates
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| 1-(2,3-dihydrobenzofuran-5-yl) ethanone | Intermediates | CS-O-15572 | 90843-31-5 | In Stock |
| 2,3-dihydrobenzofuran-5-acetic acid | Intermediates | CS-O-30847 | 69999-16-2 | In Stock |
| 5-(2-bromoethyl)Benzofuran | Intermediates | CS-O-15714 | 133034-06-7 | In Stock |
| Rac-3-Hydroxy Darifenacin | Intermediates | CS-T-55791 | 1285875-62-8 | Enquire |