Cinepazide Impurity 13 CAS 88133-87-3
| CAS No. | 88133-87-3 |
| Molecular Formula | C18H24N2O6 |
| Molecular Weight | 364.39 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.
Cinepazide Impurity 13 (CAS 88133-87-3) is a certified pharmaceutical impurity reference standard with the molecular formula C18H24N2O6 and a molecular weight of 364.39 g/mol.
The molecular framework of Cinepazide Impurity 13 (C18H24N2O6) is characterized by a flavonoid core, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
As a certified reference material (CRM), Cinepazide Impurity 13 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 | C18H24N2O6 |
| Molecular Weight | 364.39 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 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1982 |
| Nitrogen Atoms | 2 |
Related Cinepazide Standards
- Cinepazide Impurity 4 (CAS 54063-23-9)
- Cinepazide Impurity 1 (CAS 88197-50-6)
- Cinepazide Impurity 3 (CAS CATO-C4X-18153)
- Cinepazide Impurity 10 (CAS 53792-97-5)
- Cinepazide Impurity 2 (CAS 1227926-25-1)
- Cinepazide Impurity 12 (CAS 10263-19-1)
- Cinepazide Impurity 6 (CAS 20329-98-0)
- Cinepazide Impurity 9 (CAS 1352050-81-7)
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