Daprodustat Impurity 35 CAS CATO-C4X-240735
| CAS No. | CATO-C4X-240735 |
| Molecular Formula | C29H46N4O3 |
| Molecular Weight | 498.70 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.
CATO supplies Daprodustat Impurity 35 (CAS CATO-C4X-240735), a pharmacopoeial impurity reference standard (molecular formula C29H46N4O3, MW 498.70 g/mol) used for the identification and quantification of trace impurities in APIs.
Daprodustat Impurity 35 (C29H46N4O3) contains a steroid core, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).
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 | C29H46N4O3 |
| Molecular Weight | 498.70 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| 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 |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 4 |
Related Daprodustat Standards
- Daprodustat Impurity 26 (CAS CATO-C4X-240726)
- Daprodustat Impurity 22 (CAS CATO-C4X-240722)
- Daprodustat impurity 3 (CAS CATO-C4X-24073)
- Daprodustat impurity 7 (CAS CATO-C4X-24077)
- Daprodustat Impurity 30 (CAS CATO-C4X-240730)
- Daprodustat Impurity 25 (CAS CATO-C4X-240725)
- Daprodustat Impurity 29 (CAS CATO-C4X-240729)
- Daprodustat Impurity 44 (CAS CATO-C4X-240744)
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