Valganciclovir Impurity 12 CAS CATO-C4X-177412
| CAS No. | CATO-C4X-177412 |
| Molecular Formula | C7H9N5O2 |
| Molecular Weight | 195.18 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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 process- or degradation-related impurity, Valganciclovir Impurity 12 (CAS CATO-C4X-177412, C7H9N5O2) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Valganciclovir Impurity 12 (C7H9N5O2) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
As a certified reference material (CRM), Valganciclovir Impurity 12 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 | C7H9N5O2 |
| Molecular Weight | 195.18 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 5 |
Related Valganciclovir Standards
- Valganciclovir Hydrochloride EP Impurity C (CAS 1202645-50-8)
- Valganciclovir EP Impurity O (CAS 119089-68-8)
- Valganciclovir Impurity 14 (CAS 1356932-18-7)
- Valganciclovir (CAS 175865-60-8)
- Valganciclovir Impurity 22 (CAS CATO-C4X-177422)
- Valganciclovir Impurity 3 (CAS 1356847-27-2)
- Valganciclovir Impurity 6 (CAS 1356932-88-1)
- Valganciclovir Impurity 8 (CAS 1356353-76-8)
Recommended Standards
- Nicorandil Impurity 38 (CAS CATO-C4X-190738)
- Pentoxifylline EP Impurity F-13C (CAS 202282-98-2)
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- Aciclovir Impurity 41 (CAS CATO-C4X-101041)
- Cefpirome Impurity 24 (CAS CATO-C4X-120724)
- Ezetimibe Impurity 34 (CAS 99395-88-7)
- Ceftizoxime Impurity 84 (CAS CATO-C4X-179384)
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