Zonisamide impurity 10 CAS CATO-C4X-178510
| CAS No. | CATO-C4X-178510 |
| Molecular Formula | C16H13N3O6S2 |
| Molecular Weight | 407.42 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Zonisamide impurity 10 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.
As a process- or degradation-related impurity, Zonisamide impurity 10 (CAS CATO-C4X-178510, C16H13N3O6S2) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Based on its molecular formula C16H13N3O6S2, Zonisamide impurity 10 contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 407.42 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
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 | C16H13N3O6S2 |
| Molecular Weight | 407.42 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 2 |
Related Zonisamide Standards
- Zonisamide impurity 7 (CAS CATO-C4X-17857)
- Zonisamide-N-(6-hexanoic Acid) (CAS 1076199-51-3)
- Zonisamide USP Related Compound C (CAS 1217201-89-2)
- Zonisamide impurity 9 (CAS CATO-C4X-17859)
- Zonisamide Impurity 1 (CAS CATO-C4X-17851)
- Zonisamide sodium salt (CAS 68291-98-5)
- Zonisamide Chloride (CAS 73101-65-2)
- Zonisamide Impurity 17 (CAS CATO-C4X-178517)
Recommended Standards
- N-Desmethyl Topotecan (CAS 190710-79-3)
- Icotinib Impurity 3 (CAS CATO-C4X-27673)
- Dopamine Impurity 76 (CAS CATO-C4X-151476)
- Finerenone Impurity 149 (CAS CATO-C4X-2880149)
- Pilocarpine Hydrochloride EP Impurity C (CAS 34350-99-7)
- Azacitidine Impurity 32 (CAS 844877-56-1)
- Vitamin Impurity 28 (CAS 5006-20-2)
- N-Benzyl-2-piperidinecarboxamide hydrochloride (CAS 205993-54-0)
- Vernakalant HCl (CAS 748810-28-8)
- 2-Methylpyridin-3-ol hydrochloride (CAS 90724-46-2)
- Etodolac (CAS 41340-25-4)
- 1-(5-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)thiazol-2-yl)piperidin-2-one (CAS 1350755-62-2)
- Cyclohexyl 4-bromo-2-ethoxybenzamide (CAS 1261895-34-4)
- Tirzepatide Impurity 51 (CAS CATO-C4X-324051)
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