Valproate Impurity 79 CAS CATO-C4X-116679
| CAS No. | CATO-C4X-116679 |
| Molecular Formula | C20H22O10 |
| Molecular Weight | 422.38 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C20H22O10, Valproate Impurity 79 contains a flavonoid core, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 422.38 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
As a process- or degradation-related impurity, Valproate Impurity 79 (CAS CATO-C4X-116679, C20H22O10) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
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), Valproate Impurity 79 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 | C20H22O10 |
| Molecular Weight | 422.38 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
Related Valproate Standards
- Valproate Impurity 69 (CAS CATO-C4X-116669)
- Valproate Impurity 78 (CAS CATO-C4X-116678)
- Valproate Impurity 80 (CAS CATO-C4X-116680)
- Sodium Valproate Impurity 39 (CAS CATO-C4X-116639)
- Valproate Impurity 67 (CAS CATO-C4X-116667)
- Valproate Impurity 68 (CAS CATO-C4X-116668)
- Valproate Impurity 93 (CAS CATO-C4X-116693)
- Valproate Impurity 94 (CAS CATO-C4X-116694)
Recommended Standards
- Dabrafenib Impurity 5 (CAS CATO-C4X-30335)
- Enzalutamide Impurity 25 (CAS 1289942-55-7)
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- 6beta-Hydroxyipolamiide 87797-84-0 C17H26O12 W1732 (CAS 87797-84-0)
- Trelagliptin Impurity 77 (CAS CATO-C4X-104677)
- Cetirizine EP Impurity D DiHCl (CAS 856841-95-7)
- Nicardipine Impurity 48 (CAS CATO-C4X-171048)
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- 3-(3-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)propanenitrile (CAS 1214900-09-0)
- Cholecystokinin, CCK Tetrapeptide (30-33) (CAS 35144-91-3)
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