Cefazolin Impurity 85 CAS CATO-C4X-157785
| CAS No. | CATO-C4X-157785 |
| Molecular Formula | C11H12N4O4S3 |
| Molecular Weight | 360.43 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 360.43 g/mol gives Cefazolin Impurity 85 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
As a process- or degradation-related impurity, Cefazolin Impurity 85 (CAS CATO-C4X-157785, C11H12N4O4S3) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Structurally, Cefazolin Impurity 85 (C11H12N4O4S3) 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 8.0, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 360.43 g/mol, it falls into the moderately-high-molecular-weight range. 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.
As a certified reference material (CRM), Cefazolin Impurity 85 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 | C11H12N4O4S3 |
| Molecular Weight | 360.43 g/mol |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 3 |
Related Cefazolin Standards
- Cefazolin Impurity 70 (CAS CATO-C4X-157770)
- Cefazolin Impurity 56 (CAS 106773-36-8)
- Cefazolin EP Impurity A (CAS 30246-33-4)
- Cefazolin Impurity 36 (CAS CATO-C4X-157736)
- Cefazolin 3-Hydroxymethyl Impurity Sodium Salt (CAS 50971-65-8)
- Cefazolin Impurity 11 (CAS 478494-71-2)
- Cefazolin EP Impurity J (CAS 1675245-00-7)
- Cefazolin USP Related Compound D(Diastereoisomer Mixture) (CAS 1675245-01-8)
Recommended Standards
- Cefprozil Impurity 56 (CAS CATO-C4X-149256)
- Hydrocortisone (9beta,11beta)-Epoxide (CAS 10072-97-6)
- Mianserin impurity 29 (CAS 147086-11-1)
- 4,5-Dihydro Prednisone (CAS 103881-93-2)
- Calcium Folinate EP Impurity B (Mixture of Diastereomers) (CAS 98814-60-9)
- Cinnarizine Impurity 7 (CAS CATO-C4X-13987)
- Clofazimine Impurity 27 (CAS CATO-C4X-207127)
- CAS 404573-66-6 (CAS 404573-66-6)
- 8-Methyl-3,4-dihydroquinolin-2(1H)-one (CAS 20151-47-7)
- tert-Butyl 4-hydroxy-4-(1H-imidazol-2-yl)piperidine-1-carboxylate (CAS 158654-95-6)
- Iguratimod Impurity 30 (CAS CATO-C4X-182630)
- 4-(((3-(4-Fluorophenyl)-5-thioxo-1H-1,2,4-triazol-4(5H)-yl)imino)methyl)benzoic acid (CAS 577997-10-5)
- N-methyl-4-(pyridin-2-yl)thiazol-2-amine (CAS 56541-21-0)
- Semaglutide impurity 215 (CAS CATO-C4X-2226215)
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