Cefpirome Impurity 32 CAS CATO-C4X-120732
| CAS No. | CATO-C4X-120732 |
| Molecular Formula | C26H28N8O12S2 |
| Molecular Weight | 708.68 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.
As a process- or degradation-related impurity, Cefpirome Impurity 32 (CAS CATO-C4X-120732, C26H28N8O12S2) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, Cefpirome Impurity 32 is typically pale yellow to yellow amorphous powder. Its solid-state physicochemical attributes — including a molecular weight of 708.68 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C26H28N8O12S2 |
| Molecular Weight | 708.68 g/mol |
| Purity | ＞90% |
| 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) | 17.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 8 |
| Sulfur Atoms | 2 |
Related Cefpirome Standards
- Cefpirome Impurity 23 (CAS CATO-C4X-120723)
- Cefpirome Impurity 34 (CAS CATO-C4X-120734)
- Cefpirome Impurity 35 (CAS CATO-C4X-120735)
- Cefpirome Impurity 50 (CAS CATO-C4X-120750)
- Cefpirome Impurity 29 (CAS CATO-C4X-120729)
- Cefpirome Impurity 24 (CAS CATO-C4X-120724)
- Cefpirome Impurity 6 (CAS CATO-C4X-12076)
- Cefpirome Impurity 25 (CAS CATO-C4X-120725)
Recommended Standards
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- Flutamide EP Impurity E (CAS 1939-27-1)
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- tert-Butyl 2-(2-cyanoacetyl)pyrrolidine-1-carboxylate (CAS 1824210-22-1)
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