Roxadustat Impurity 73 CAS CATO-C4X-221373
| CAS No. | CATO-C4X-221373 |
| Molecular Formula | C18H15NO4 |
| Molecular Weight | 309.32 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 309.32 g/mol gives Roxadustat Impurity 73 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
As a process- or degradation-related impurity, Roxadustat Impurity 73 (CAS CATO-C4X-221373, C18H15NO4) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Structurally, Roxadustat Impurity 73 (C18H15NO4) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 12.0, corresponding to approximately 12 ring(s) or double-bond equivalent(s). With a molecular weight of 309.32 g/mol, it falls into the moderately-high-molecular-weight range. 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 73 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 | C18H15NO4 |
| Molecular Weight | 309.32 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 methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 1 |
Related Roxadustat Standards
- Roxadustat Impurity N1 (CAS 808116-52-1)
- Roxadustat Impurity 39 (CAS CATO-C4X-221339)
- Roxadustat Impurity N3 (CAS 1421312-34-6)
- Roxadustat Impurity 48 (CAS CATO-C4X-221348)
- Roxadustat Impurity 165 (CAS CATO-C4X-2213165)
- Roxadustat Impurity 89 (CAS CATO-C4X-221389)
- Roxadustat Impurity 92 (CAS CATO-C4X-221392)
- Roxadustat Impurity N6 (CAS 1421312-32-4)
Recommended Standards
- Mebendazole EP Impurity D (CAS 132119-11-0)
- Nintedanib Impurity 55 (CAS 1438271-13-6)
- Ozenoxacin Impurity 4 (CAS CATO-C4X-27964)
- Nintedanib Impurity 53 (CAS 1160293-22-0)
- Ambrisentan Impurity 6 (CAS 1007358-76-0)
- Ivabradine impurity 80 (CAS CATO-C4X-111980)
- Valsartan Impurity 121 (CAS 1000986-63-9)
- ((2-(Bromomethyl)butoxy)methyl)cyclopropane (CAS 1466249-07-9)
- 3-Nitro-N-(4-(trifluoromethyl)phenyl)benzenesulfonamide (CAS 312-49-2)
- 4-Desacetyl 3-Deoxy Vincristine (CAS 99435-53-7)
- Methyl 3-propylpiperidine-3-carboxylatehydrochloride (CAS 1332531-67-5)
- (3R)-L-Alanyl-2-bromo-N-methyl-D-tryptophyl-3-[4-[[tris(1-methylethyl)silyl]oxy]phenyl]-β-alanine Methyl Ester (CAS 943858-26-2)
- (4-(4-Chlorophenyl)thiazol-2-yl)methanol (CAS 287198-05-4)
- Semaglutide impurity 97 (CAS CATO-C4X-222697)
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