Faropenem Impurity 77 CAS CATO-C4X-128977
| CAS No. | CATO-C4X-128977 |
| Molecular Formula | C12H15NO6S |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Faropenem Impurity 77 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.
As a process- or degradation-related impurity, Faropenem Impurity 77 (CAS CATO-C4X-128977, C12H15NO6SNa) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Faropenem Impurity 77 (C12H15NO6SNa) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
Physical & Chemical Properties
| Molecular Formula | C12H15NO6S 2*Na |
| Molecular Weight | 324.30 g/mol |
| Purity | ≥95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| 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 10 (CAS 106559-80-2)
- Faropenem Potassium Salt (CAS 106559-89-1)
- Faropenem Epimer Impurity (CAS 106560-13-8)
- Faropenem (CAS 106560-14-9)
- Faropenem Impurity 15 (CAS 106560-32-1)
- Faropenem Impurity 11 (CAS 120705-67-1)
- Faropenem Sodium (CAS 122547-49-3)
- Faropenem-d7 Sodium Salt (CAS 122547-49-3 (unlabelled))
Recommended Standards
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- 2-(1h-1,2,4-Triazol-1-yl)pyridine-4-carboximidamide hydrochloride (CAS 1421606-01-0)
- 2-((Cyclohex-3-en-1-ylmethyl)amino)butan-1-ol (CAS 1042553-15-0)
- 5,5-Methylenebis(4-benzyl-4H-1,2,4-triazole-3-thiol) (CAS 62575-53-5)
- 1-(2-(4-Chloro-1h-pyrazol-1-yl)ethyl)-1h-pyrazol-4-amine (CAS 1249415-83-5)
- n1-(6-Chloropyridazin-3-yl)benzene-1,4-diamine (CAS 438220-52-1)
- Semaglutide impurity 29 (CAS 110990-08-4)
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