Solifenacin Impurity 26 CAS CATO-C4X-105326
| CAS No. | CATO-C4X-105326 |
| Molecular Formula | C19H17N3O |
| Molecular Weight | 303.36 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Solifenacin Impurity 26 (CAS CATO-C4X-105326) is a certified pharmaceutical impurity reference standard with the molecular formula C19H17N3O and a molecular weight of 303.36 g/mol.
The molecular framework of Solifenacin Impurity 26 (C19H17N3O) is characterized by a steroid core, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.
As a certified reference material (CRM), Solifenacin Impurity 26 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C19H17N3O |
| Molecular Weight | 303.36 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 3 |
Related Solifenacin Standards
- Solifenacin Impurity 19 (CAS 1029430-94-1)
- Solifenacin EP Impurity B (CAS 1353274-25-5)
- Solifenacin Impurity 34 (CAS 1243274-81-8)
- Solifenacin Impurity 13 (CAS 180468-41-1)
- Solifenacin Impurity 3 (CAS 180468-42-2)
- Solifenacin Impurity 14 (Base) (CAS 5669-43-2)
- Solifenacin Impurity 25 (CAS 46834-56-4)
- Solifenacin (CAS 242478-37-1)
Recommended Standards
- Bendamustine Impurity 13 (CAS 1228552-02-0)
- tert-butyl (2-(3-phenyl-1,2,4-oxadiazol-5-yl)propan-2-yl)carbamate (CAS 336784-52-2)
- Zolmitriptan EP Impurity B (CAS 251451-30-6)
- 338409-37-3 5-methyl-2-(2-pyrazinyl)-1,3-thiazol-4-yl 2-thiophenecarboxylate KS-00001VFF (CAS 338409-37-3)
- Atorvastatin Impurity 155 (CAS CATO-C4X-1132155)
- Pranoprofen Impurity 83 (CAS CATO-C4X-181183)
- Isavuconazole Impurity 137 (CAS 2962831-01-0)
- Doxofylline Impurity 25 (CAS 6642-31-5)
- Dienogest EP Impurity G (CAS 86153-38-0)
- 2-(Thiazol-2-yl)benzaldehyde (CAS 223575-69-7)
- 1-(3,5-Dichlorophenyl)-2-(isopropylamino)ethan-1-ol (CAS 78982-75-9)
- 8-Aminophenazin-1-ol (CAS 62842-50-6)
- Tert-butyl 4-benzyl-2-(hydroxymethyl)piperazine-1-carboxylate (CAS 936553-15-0)
- Semaglutide impurity 30 (CAS CATO-C4X-222630)
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