Cefprozil Impurity 31 CAS CATO-C4X-149231
| CAS No. | CATO-C4X-149231 |
| Molecular Formula | C21H23N3O7S |
| Molecular Weight | 461.49 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C21H23N3O7S, Cefprozil Impurity 31 contains a flavonoid core, 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 461.49 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
As a process- or degradation-related impurity, Cefprozil Impurity 31 (CAS CATO-C4X-149231, C21H23N3O7S) 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), Cefprozil Impurity 31 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 | C21H23N3O7S |
| Molecular Weight | 461.49 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Cefprozil Standards
- Cefprozil EP Impurity M (CAS CATO-C4X-149211)
- Cefprozil EP Impurity N (CAS CATO-C4X-149217)
- Cefprozil Impurity 30 (CAS CATO-C4X-149230)
- Cefprozil Impurity 39 (CAS CATO-C4X-149239)
- Cefprozil Impurity 57 (CAS CATO-C4X-149257)
- Cefprozil Impurity 60 (CAS CATO-C4X-149260)
- Cefprozil Impurity 52 (CAS CATO-C4X-149252)
- Cefprozil Impurity 61 (CAS CATO-C4X-149261)
Recommended Standards
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- Flurbiprofen Impurity 110 (CAS CATO-C4X-1444110)
- Acalabrutinib Impurity N1 (CAS 1952316-43-6)
- Ruxolitinib Impurity 85 (CAS CATO-C4X-205885)
- 2-(1-Methyl-1H-pyrrol-2-yl)-2-oxo-N-phenylacetamide (CAS 477871-95-7)
- 4-Ethoxy-1H-pyrazole (CAS 81437-10-7)
- 3-(3-Methyl-1,2,4-oxadiazol-5-yl)benzaldehyde (CAS 273727-50-7)
- 1-(2-(Benzyloxy)phenyl)propan-1-amine (CAS 954574-96-0)
- Methyl 2-(spiro[2.2]Pentan-1-yl)acetate (CAS 114720-65-9)
- tert-Butyl (3-cyano-7-fluoro-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzo[b]thiophen-2-yl)carbamate (CAS 2761968-90-3)
- Semaglutide-d15 (CAS 910463-68-2(non-labelled))
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