Vardenafil Impurity 63 CAS CATO-C4X-101763
| CAS No. | CATO-C4X-101763 |
| Molecular Formula | C25H35N7O6S |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a process- or degradation-related impurity, Vardenafil Impurity 63 (CAS CATO-C4X-101763, C25H35N7O6SC6H8O7) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
The molecular framework of Vardenafil Impurity 63 (C25H35N7O6SC6H8O7) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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), Vardenafil Impurity 63 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 | C25H35N7O6S C6H8O7 |
| Molecular Weight | 753.78 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 7 |
| Sulfur Atoms | 1 |
Related Vardenafil Standards
- Vardenafil Impurity 29 (CAS 1009013-42-6)
- Vardenafil-d5 (CAS 1189685-70-8)
- Vardenafil Hydrochloride Trihydrate EP Impurity C (CAS 1255919-03-9)
- Vardenafil Acetyl Analogue (CAS 1261351-28-3)
- Vardenafil Acetyl-d5 Analogue (CAS 1330171-51-1)
- Vardenafil Impurity 30 (CAS 1339092-18-0)
- Vardenafil Impurity 46 (CAS 1417529-59-9)
- Vardenafil Impurity 54 (CAS 1810028-99-9)
Recommended Standards
- Tamsulosin Impurity 59 (CAS 1073231-99-8)
- Moxifloxacin Impurity 57 (CAS CATO-C4X-107457)
- Adrenaline Impurity 16 HCl (CAS 857565-22-1)
- tert-Butyl (1-(2-aminoethyl)pyrrolidin-3-yl)(isopropyl)carbamate (CAS 1353944-32-7)
- rel-(1R,5S,6r)-6-(fluoromethyl)-3-azabicyclo[3.1.0]hexane;hydrochloride (CAS 1212147-76-6)
- 4-Hydroxy-6-(trifluoromethyl)pyridin-2(1H)-one (CAS 947144-32-3)
- 1-((1-(Cyclopropylsulfonyl)piperidin-4-yl)methyl)-3-(2,3-dimethoxyphenyl)urea (CAS 1235052-52-4)
- (S)-1-(D-Valyl)-4,4-difluoropyrrolidine-2-carbonitrile hydrochloride (CAS 2446617-70-3)
- 1-(2-(4-Chlorophenyl)-4-methylthiazol-5-yl)ethan-1-one (CAS 54001-07-9)
- Angiotensin III Antipeptide (CAS 133605-55-7)
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