Valproate Impurity 78 CAS CATO-C4X-116678
| CAS No. | CATO-C4X-116678 |
| Molecular Formula | C20H22O10 |
| Molecular Weight | 422.38 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, Valproate Impurity 78 (CAS CATO-C4X-116678, C20H22O10) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Structurally, Valproate Impurity 78 (C20H22O10) contains a flavonoid core, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 10.0, corresponding to approximately 10 ring(s) or double-bond equivalent(s). With a molecular weight of 422.38 g/mol, it falls into the moderately-high-molecular-weight range. 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).
CATO manufactures Valproate Impurity 78 under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
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 79 (CAS CATO-C4X-116679)
- 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
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Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com