Palbociclib Impurity 9 CAS CATO-C4X-11259
| CAS No. | CATO-C4X-11259 |
| Molecular Formula | C27H34BrN7O3 |
| Molecular Weight | 584.51 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.
As a process- or degradation-related impurity, Palbociclib Impurity 9 (CAS CATO-C4X-11259, C27H34BrN7O3) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Based on its molecular formula C27H34BrN7O3, Palbociclib Impurity 9 contains a steroid core, an amide group, a hydroxyl group, an ether linkage, bromine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 584.51 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
As a certified reference material (CRM), Palbociclib Impurity 9 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 | C27H34BrN7O3 |
| Molecular Weight | 584.51 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 7 |
Related Palbociclib Standards
- Palbociclib Impurity 164 (CAS CATO-C4X-1125164)
- Palbociclib Impurity 73 (CAS 571188-82-4)
- Palbociclib Impurity 122 (CAS CATO-C4X-1125122)
- Palbociclib Impurity 8 (CAS 2459303-19-4)
- Palbociclib Impurity 37 (CAS 827022-31-1)
- Palbociclib Impurity 188 (CAS CATO-C4X-1125188)
- Palbociclib Impurity 116 (CAS CATO-C4X-1125116)
- Palbociclib Impurity 19 (CAS 1941177-47-4)
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- Epalrestat Impurity 12 (CAS CATO-C4X-223612)
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- 1,3-Bis(2,3,4,5-tetramethylcyclopenta-2,4-dien-1-yl)propane (CAS 108344-77-0)
- GRP (18-27) (human, porcine, canine) (CAS 81608-30-2)
- tert-Butyl n-[1-(aminomethyl)cyclohexyl]carbamate (CAS 864943-63-5)
- Semaglutide impurity 249 (CAS CATO-C4X-2226249)
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