Cefixime Impurity 30 CAS CATO-C4X-113930
| CAS No. | CATO-C4X-113930 |
| Molecular Formula | C25H23N7O9S3 |
| Molecular Weight | 661.69 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C25H23N7O9S3, Cefixime Impurity 30 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 661.69 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).
CATO supplies Cefixime Impurity 30 (CAS CATO-C4X-113930), a pharmacopoeial impurity reference standard (molecular formula C25H23N7O9S3, MW 661.69 g/mol) used for the identification and quantification of trace impurities in APIs.
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), Cefixime Impurity 30 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 | C25H23N7O9S3 |
| Molecular Weight | 661.69 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) | 18.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 7 |
| Sulfur Atoms | 3 |
Related Cefixime Standards
- Cefixime Impurity 110 (CAS CATO-C4X-1139110)
- Cefixime Impurity 18 (CAS CATO-C4X-113918)
- Cefixime Impurity 32 (CAS CATO-C4X-113932)
- Cefixime Impurity 33 (CAS CATO-C4X-113933)
- Cefixime Impurity 63 (CAS CATO-C4X-113963)
- Cefixime Impurity 56 (CAS CATO-C4X-113956)
- Cefixime Impurity 106 (CAS CATO-C4X-1139106)
- Cefixime Impurity 105 (CAS CATO-C4X-1139105)
Recommended Standards
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- Fondaparinux Sodium Impurity 11 (CAS CATO-C4X-205211)
- Insulin Degludec Impurity 16 (CAS CATO-C4X-215716)
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