Cefixime Impurity 35 Sodium Salt CAS CATO-C4X-119335
| CAS No. | CATO-C4X-119335 |
| Molecular Formula | C15H16N5O4S2 |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Structurally, Cefixime Impurity 35 Sodium Salt (C15H16N5O4S2Na) contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 10.5, corresponding to approximately 10 ring(s) or double-bond equivalent(s). With a molecular weight of 417.43 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).
As a process- or degradation-related impurity, Cefixime Impurity 35 Sodium Salt (CAS CATO-C4X-119335, C15H16N5O4S2Na) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
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 35 Sodium Salt 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 | C15H16N5O4S2 Na |
| Molecular Weight | 417.43 g/mol |
| Purity | >95% |
| 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) | 10.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 5 |
| Sulfur Atoms | 2 |
Related Cefixime Standards
- Cefixime Impurity 104 (CAS 101156-41-6)
- Cefixime EP Impurity C (CAS 108691-83-4)
- Cefixime Impurity 113 (CAS 119608-72-9)
- Cefixime Trihydrate (CAS 125110-14-7)
- Cefixime Impurity C16 (CAS 1335475-08-5)
- Cefixime EP Impurity B (CAS 1335475-19-8)
- Cefixime Impurity 12 (CAS 1335555-87-7)
- Cefixime EP Impurity A (CAS 1614255-90-1)
Recommended Standards
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- 8-(4-Oxo-1,4-dihydroquinazolin-2-yl)-1-naphthoic acid (CAS 61802-38-8)
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