Topiramate Impurity 3 CAS CATO-C4X-17683
| CAS No. | CATO-C4X-17683 |
| Molecular Formula | C24H39NO13S |
| Molecular Weight | 581.63 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.
Topiramate Impurity 3 (CAS CATO-C4X-17683) is a certified pharmaceutical impurity reference standard with the molecular formula C24H39NO13S and a molecular weight of 581.63 g/mol.
Topiramate Impurity 3 (C24H39NO13S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
As a certified reference material (CRM), Topiramate Impurity 3 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 | C24H39NO13S |
| Molecular Weight | 581.63 g/mol |
| 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Topiramate Standards
- Topiramate EP Impurity D (CAS 950603-46-0)
- Topiramate Impurity 33 (CAS CATO-C4X-176833)
- Topiramate EP Impurity B (CAS 876403-98-4)
- Topiramate Impurity 29 (CAS 53209-14-6)
- Topiramate Impurity 31 (CAS CATO-C4X-176831)
- Topiramate Impurity 11 (CAS CATO-C4X-176811)
- Topiramate Impurity 22 (CAS CATO-C4X-176822)
- Topiramate Impurity 32 (CAS CATO-C4X-176832)
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