Docetaxel Impurity 90 CAS CATO-C4X-161990
| CAS No. | CATO-C4X-161990 |
| Molecular Formula | C17H17NO4 |
| Molecular Weight | 299.32 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, Docetaxel Impurity 90 (CAS CATO-C4X-161990, C17H17NO4) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Based on its molecular formula C17H17NO4, Docetaxel Impurity 90 contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 299.32 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
As a certified reference material (CRM), Docetaxel Impurity 90 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 | C17H17NO4 |
| Molecular Weight | 299.32 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| 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 |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 1 |
Related Docetaxel Standards
- Docetaxel Impurity 89 (CAS CATO-C4X-161989)
- Docetaxel Impurity 51 (CAS 147058-27-3)
- Docetaxel Impurity 16 (CAS 161759-90-6)
- Docetaxel Impurity 66 (CAS 158830-39-8)
- Docetaxel Impurity 67 (CAS 124605-42-1)
- Docetaxel Impurity 72 (CAS 959123-35-4)
- Docetaxel Impurity 22 (CAS 161183-22-8)
- Docetaxel Impurity 52 (CAS 154428-10-1)
Recommended Standards
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- Sofosbuvir Impurity 27 (CAS CATO-C4X-105227)
- Rosuvastatin Impurity(3R,5R) (CAS 1422515-55-6)
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