Cefazolin Impurity 37 CAS CATO-C4X-157737
| CAS No. | CATO-C4X-157737 |
| Molecular Formula | C28H28N16O8S6 |
| Molecular Weight | 909.01 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C28H28N16O8S6, Cefazolin Impurity 37 contains a nitrogen-containing heterocyclic scaffold, 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 909.01 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
As a process- or degradation-related impurity, Cefazolin Impurity 37 (CAS CATO-C4X-157737, C28H28N16O8S6) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
As a certified reference material (CRM), Cefazolin Impurity 37 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 | C28H28N16O8S6 |
| Molecular Weight | 909.01 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) | 23.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 16 |
| Sulfur Atoms | 6 |
Related Cefazolin Standards
- Cefazolin Impurity 83 (CAS CATO-C4X-157783)
- Cefazolin Impurity 81 (CAS CATO-C4X-157781)
- Cefazolin Impurity 73 (CAS CATO-C4X-157773)
- Cefazolin Impurity 38 (CAS CATO-C4X-157738)
- Cefazolin Impurity 39 (CAS CATO-C4X-157739)
- Cefazolin Impurity 82 (CAS CATO-C4X-157782)
- Cefazolin Dimer N43 (CAS CATO-C4X-157743)
- Cefazolin Impurity 32 (CAS CATO-C4X-157732)
Recommended Standards
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