Roxadustat Impurity 49 CAS CATO-C4X-221349
| CAS No. | CATO-C4X-221349 |
| Molecular Formula | C21H23N3O3 |
| Molecular Weight | 365.43 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Roxadustat Impurity 49 (CAS CATO-C4X-221349) is a certified pharmaceutical impurity reference standard with the molecular formula C21H23N3O3 and a molecular weight of 365.43 g/mol.
Owing to a steroid core, an amide group, a hydroxyl group, an ether linkage, Roxadustat Impurity 49 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 365.43 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).
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 manufactures Roxadustat Impurity 49 under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C21H23N3O3 |
| Molecular Weight | 365.43 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 3 |
Related Roxadustat Standards
- Roxadustat Impurity 101 (CAS CATO-C4X-2213101)
- Roxadustat Impurity 126 (CAS CATO-C4X-2213126)
- Roxadustat Impurity 5 (CAS 1421312-36-8)
- Roxadustat Impurity 74 (CAS CATO-C4X-221374)
- Roxadustat Impurity 21 (CAS CATO-C4X-221321)
- Roxadustat Impurity N5 (CAS 1509958-20-6)
- Roxadustat impurity 134 (CAS 2243807-81-8)
- Roxadustat Impurity 132 (CAS CATO-C4X-2213132)
Recommended Standards
- Amlexanox Impurity 2 (CAS CATO-C4X-21762)
- Cefapirin EP Impurity C (CAS 47364-76-1)
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- Baxdrostat Impurity 15 (CAS 3084666-04-3)
- Duloxetine Impurity (CAS 2680527-91-5)
- Meropenem EP Impurity A(Sodium Salt) (CAS CATO-C4X-13091)
- Rosuvastatin Impurity 182 (CAS CATO-C4X-1169182)
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- tert-Butyl 2-(4-bromophenyl)-1H-imidazole-1-carboxylate (CAS 176961-27-6)
- Acetyl-(Leu28·31)-Neuropeptide Y (24-36) (CAS 155709-24-3)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com