Daprodustat impurity 3 CAS CATO-C4X-24073
| CAS No. | CATO-C4X-24073 |
| Molecular Formula | C25H38N4O8 |
| Molecular Weight | 522.59 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.
Daprodustat impurity 3 (CAS CATO-C4X-24073) is a certified pharmaceutical impurity reference standard with the molecular formula C25H38N4O8 and a molecular weight of 522.59 g/mol.
Based on its molecular formula C25H38N4O8, Daprodustat impurity 3 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 522.59 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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C25H38N4O8 |
| Molecular Weight | 522.59 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 4 |
Related Daprodustat Standards
- Daprodustat Impurity 22 (CAS CATO-C4X-240722)
- Daprodustat Impurity 35 (CAS CATO-C4X-240735)
- Daprodustat Impurity 25 (CAS CATO-C4X-240725)
- Daprodustat Impurity 26 (CAS CATO-C4X-240726)
- Daprodustat impurity 7 (CAS CATO-C4X-24077)
- Daprodustat Impurity 23 (CAS CATO-C4X-240723)
- Daprodustat Impurity 30 (CAS CATO-C4X-240730)
- Daprodustat Impurity 29 (CAS CATO-C4X-240729)
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