Cefminox Impurity 5 CAS CATO-C4X-19265
| CAS No. | CATO-C4X-19265 |
| Molecular Formula | C14H18N3NaO8S2 |
| Molecular Weight | 443.43 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Cefminox Impurity 5.
Cefminox Impurity 5 (CAS CATO-C4X-19265) is a certified pharmaceutical impurity reference standard with the molecular formula C14H18N3NaO8S2 and a molecular weight of 443.43 g/mol.
Structurally, Cefminox Impurity 5 (C14H18N3NaO8S2) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 7.5, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 443.43 g/mol, it falls into the moderately-high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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), Cefminox Impurity 5 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 | C14H18N3NaO8S2 |
| Molecular Weight | 443.43 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) | 7.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 2 |
Related Cefminox Standards
- Cefminox Impurity 48 (CAS CATO-C4X-192648)
- Cefminox Sodium Impurity 20 (CAS 57617-09-1)
- Cefminox Impurity 4 (CAS CATO-C4X-19264)
- Cefminox Impurity 16 (CAS CATO-C4X-192616)
- Cefminox Impurity 31 (CAS CATO-C4X-192631)
- Cefminox Impurity 40 (CAS CATO-C4X-192640)
- Cefminox Impurity 49 (CAS CATO-C4X-192649)
- Cefminox impurity 53 (CAS CATO-C4X-192653)
Recommended Standards
- Clindamycin Impurity 88 (CAS CATO-C4X-134188)
- 4-Propionamido-N-(2-((2-(trifluoromethyl)phenyl)sulfonamido)ethyl)benzamide (CAS 1091479-55-8)
- Clindamycin Impurity 87 (CAS CATO-C4X-134187)
- 6,7-Difluoro-1-(4-fluorobenzyl)-3-(m-tolylsulfonyl)quinolin-4(1H)-one (CAS 1326894-35-2)
- Cefminox Impurity 42 (CAS CATO-C4X-192642)
- Rimegepant Impurity 39 (CAS CATO-C4X-248739)
- Leflunomide EP Impurity C (CAS 61643-23-0)
- 5-Phenyl-4-(2,2,2-trifluoroethyl)-4h-1,2,4-triazole-3-thiol (CAS 1038383-07-1)
- N-Butan-2-Yl-1-[5-[(3',6'-Dihydroxy-3-Oxospiro[2-Benzofuran-1,9'-Xanthene]-5-Carbonyl)Amino]-2-Fluorophenyl]-N-Methylisoquinoline-3-Carboxamide (CAS 143934-15-0)
- ethyl 3,4,5-trimethoxy-2-nitrobenzoate (CAS 186603-53-2)
- Flucytosine Impurity 2 (CAS 1196146-71-0)
- Favipiravir Deoxy Impurity (CAS 356783-47-6)
- 1-(3,4-Dichlorophenyl)propan-1-amine hydrochloride (CAS 847448-33-3)
- D-Lys20-Tirzepatide (CAS CATO-CPTD788914)
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