Faropenem Impurity 22 CAS CATO-C4X-128922
| CAS No. | CATO-C4X-128922 |
| Molecular Formula | C11H13NO2S |
| Molecular Weight | 223.29 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.
Faropenem Impurity 22 (CAS CATO-C4X-128922) is a certified pharmaceutical impurity reference standard with the molecular formula C11H13NO2S and a molecular weight of 223.29 g/mol.
Structurally, Faropenem Impurity 22 (C11H13NO2S) 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 6.0, corresponding to approximately 6 ring(s) or double-bond equivalent(s). With a molecular weight of 223.29 g/mol, it falls into the medium-molecular-weight range. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
As a certified reference material (CRM), Faropenem Impurity 22 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 | C11H13NO2S |
| Molecular Weight | 223.29 g/mol |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Faropenem Standards
- Faropenem Impurity 83 (CAS CATO-C4X-128983)
- Faropenem Impurity 80 (CAS CATO-C4X-128980)
- Faropenem Impurity 40 (CAS CATO-C4X-128940)
- Faropenem Impurity 6 (CAS CATO-C4X-12896)
- Faropenem Impurity 65 (CAS CATO-C4X-128965)
- Faropenem Impurity 33 (CAS CATO-C4X-128933)
- Faropenem Impurity 61 (CAS CATO-C4X-128961)
- Faropenem Impurity 13 (CAS CATO-C4X-128913)
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