Moxidectin EP Impurity K CAS 174756-99-1
| CAS No. | 174756-99-1 |
| Molecular Formula | C44H56N2O11 |
| Molecular Weight | 788.92 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Moxidectin EP Impurity K 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, Moxidectin EP Impurity K (CAS 174756-99-1, C44H56N2O11) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Moxidectin EP Impurity K (C44H56N2O11) contains a nitrogen-containing heterocyclic scaffold, an amide 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 | C44H56N2O11 |
| Molecular Weight | 788.92 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) | 18.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2006 |
| Nitrogen Atoms | 2 |
Related Moxidectin Standards
- Moxidectin O-TBS (CAS 1646166-08-6)
- Moxidectin EP Impurity J (CAS CATO-C4X-227513)
- Moxidectin EP Impurity I (CAS 113463-31-3)
- Moxidectin impurity 18 (CAS 1402163-94-3)
- Moxidectin EP Impurity F (CAS CATO-C4X-227510)
- Moxidectin-d3 (CAS 113507-06-5 (unlabelled))
- Moxidectin EP Impurity D (CAS CATO-C4X-22751)
- Moxidectin EP Impurity L (CAS 119718-45-5)
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Why CATO?
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