Baloxavir Impurity 133 CAS CATO-C4X-2108133
| CAS No. | CATO-C4X-2108133 |
| Molecular Formula | C30H31F2N3O5S |
| Molecular Weight | 583.65 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Baloxavir Impurity 133 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Baloxavir Impurity 133 (CAS CATO-C4X-2108133) is a certified pharmaceutical impurity reference standard with the molecular formula C30H31F2N3O5S and a molecular weight of 583.65 g/mol.
The molecular framework of Baloxavir Impurity 133 (C30H31F2N3O5S) is characterized by a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, fluorine substitution. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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.
Physical & Chemical Properties
| Molecular Formula | C30H31F2N3O5S |
| Molecular Weight | 583.65 g/mol |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 16.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | F-containing |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Baloxavir Standards
- Baloxavir lmpurity 58 (CAS CATO-C4X-210858)
- Baloxavir Marboxil Impurity 210 (CAS CATO-C4X-2108210)
- Baloxavir Impurity 112 (CAS CATO-C4X-2108112)
- Baloxavir Impurity 62 (CAS 3047099-99-7)
- Baloxavir Marboxil Impurity 169 (CAS CATO-C4X-2108169)
- Baloxavir Impurity 70 (CAS CATO-C4X-210870)
- Baloxavir Marboxil Impurity 230 (CAS CATO-C4X-2108230)
- Baloxavir Impurity 8 (CAS CATO-C4X-21088)
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