Daprodustat impurity 9 CAS CATO-C4X-24079
| CAS No. | CATO-C4X-24079 |
| Molecular Formula | C19H27N3O8 |
| Molecular Weight | 425.43 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Owing to a flavonoid core, an amide group, a hydroxyl group, an ether linkage, Daprodustat impurity 9 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 425.43 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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 process- or degradation-related impurity, Daprodustat impurity 9 (CAS CATO-C4X-24079, C19H27N3O8) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
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.
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 | C19H27N3O8 |
| Molecular Weight | 425.43 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 3 |
Related Daprodustat Standards
- Daprodustat Impurity 43 (CAS CATO-C4X-240743)
- Daprodustat Impurity 41 (CAS CATO-C4X-240741)
- Daprodustat impurity 27 (CAS 960540-96-9)
- Daprodustat Impurity 44 (CAS CATO-C4X-240744)
- Daprodustat Impurity 29 (CAS CATO-C4X-240729)
- Daprodustat impurity 8 (CAS CATO-C4X-24078)
- Daprodustat-D8 (CAS 2250290-94-7)
- Daprodustat Impurity 30 (CAS CATO-C4X-240730)
Recommended Standards
- Sinalbin (CAS 19253-84-0)
- Barloxavir impurity 97 (CAS CATO-C4X-210897)
- Boc-Lys(4-nitro-Z)-OH (CAS 22601-53-2)
- Barloxavir impurity 92 (CAS 2460686-98-8)
- Iopamidol Impurity 16 (CAS 77697-86-0)
- Clotrimazole Impurity 13 (CAS 108-41-8)
- Loxoprofen impurity 99 (CAS 221017-01-2)
- 2-(3-Fluoro-4-methylphenyl)benzoic acid (CAS 1261940-97-9)
- Benzyl 4,4-dimethyl-3-oxopentanoate (CAS 77902-92-2)
- Piperacillin Impurity 78 (CAS CATO-C4X-173278)
- Cholecalciferol EP Impurity A (CAS 22350-41-0)
- N-[(E)-2-[6-Methyl-3-(methylsulfanyl)-1,2,4-triazin-5-yl]ethenyl]-3-(trifluoromethyl)aniline (CAS 306980-30-3)
- 4-(4-Chlorophenyl)-4-fluoropiperidine (CAS 740789-75-7)
- Tau Peptide (301-315) trifluoroacetate salt (CAS 330456-48-9)
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