Sodium Valproate EP Impurity B CAS 20225-24-5
| CAS No. | 20225-24-5 |
| Molecular Formula | C7H14O2 |
| Molecular Weight | 130.18 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Sodium Valproate EP Impurity B 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.
Sodium Valproate EP Impurity B (CAS 20225-24-5) is a certified pharmaceutical impurity reference standard with the molecular formula C7H14O2 and a molecular weight of 130.18 g/mol.
Based on its molecular formula C7H14O2, Sodium Valproate EP Impurity B contains a carboxylic acid group, a hydroxyl group, an ether linkage; these features give the compound characteristic functional-group stretching vibrations in infrared spectroscopy. The molecular weight of 130.18 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry.
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.
Physical & Chemical Properties
| Molecular Formula | C7H14O2 |
| Molecular Weight | 130.18 g/mol |
| Purity | >95% |
| Storage | Store at 2-8°C |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | Stable under recommended storage conditions |
| Degree of Unsaturation (DBE) | 1.0 |
| CAS Registry Year (est.) | 1962 |
Related Sodium Standards
- Valproate EP Impurity I (CAS 13310-75-3)
- Valproate Impurity 66 (CAS CATO-C4X-116666)
- Sodium Valproate Impurity 27 (CAS 1575-72-0)
- Sodium Valproate Impurity 35 (CAS 6137-09-3)
- Valproate Impurity 49 (CAS 40239-27-8)
- Sodium Valproate EP Impurity F (CAS 2430-27-5)
- Sodium Valproate EP Impurity L (CAS 97-61-0)
- Sodium Valproate EP Impurity K (CAS 5343-52-2)
Recommended Standards
- 2-Methylhexanoic Acid (CAS 4536-23-6)
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- [1,2,4]triazino[4,5-a]benzimidazol-4(3H)-one (CAS 20029-13-4)
- Semaglutide impurity 250 (CAS CATO-C4X-2226250)
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