Goserelin EP Impurity K CAS 1926163-83-8
| CAS No. | 1926163-83-8 |
| Molecular Formula | C61H86N18O15 |
| Molecular Weight | 1311.45 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a process- or degradation-related impurity, Goserelin EP Impurity K (CAS 1926163-83-8, C61H86N18O15) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, Goserelin EP Impurity K is typically pale yellow to yellow amorphous powder. Its solid-state physicochemical attributes — including a molecular weight of 1311.45 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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.
As a certified reference material (CRM), Goserelin 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.
Physical & Chemical Properties
| Molecular Formula | C61H86N18O15 |
| Molecular Weight | 1311.45 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) | 28.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1996 |
| Nitrogen Atoms | 18 |
Related Goserelin Standards
- Goserelin Impurity 39 (CAS CATO-C4X-192039)
- Goserelin Impurity 52 (CAS CATO-C4X-192052)
- Goserelin-D10 (CAS CATO-C4X-192013)
- Goserelin Impurity N36 (CAS 1426173-74-1)
- Goserelin EP Impurity L (CAS 1926163-38-3)
- Goserelin (CAS 65807-02-5)
- Goserelin EP Impurity A (CAS 1926163-39-4)
- Goserelin EP Impurity G (CAS 1926163-37-2)
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