Baloxavir Impurity C65 CAS 2374735-31-4
| CAS No. | 2374735-31-4 |
| Molecular Formula | - |
| Molecular Weight | 554.56 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Baloxavir Impurity C65.
Baloxavir Impurity C65 (CAS 2374735-31-4) is a certified pharmaceutical impurity reference standard with the molecular formula C27H23DFN3O7S and a molecular weight of 554.56 g/mol.
Structurally, Baloxavir Impurity C65 (C27H23DFN3O7S) contains deuterium isotope labeling, a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, fluorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 17.5, corresponding to approximately 17 ring(s) or double-bond equivalent(s). With a molecular weight of 554.56 g/mol, it falls into the moderately-high-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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.
As a certified reference material (CRM), Baloxavir Impurity C65 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.
Physical & Chemical Properties
| Molecular Formula | C27H23DFN3O7S |
| Molecular Weight | 554.56 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) | 17.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1999 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Baloxavir Standards
- Baloxavir Marboxil Impurity 151 (CAS CATO-C4X-2108151)
- Baloxavir impurity C94 (CAS 1985606-40-3)
- Baloxavir Impurity 101 (CAS CATO-C4X-2108101)
- Baloxavir Marboxil Impurity 198 (CAS CATO-C4X-2108198)
- Baloxavir Marboxil Impurity 234 (CAS CATO-C4X-2108234)
- Baloxavir Impurity 31 (CAS 2954948-28-6)
- Baloxavir Marboxil Impurity 192 (CAS CATO-C4X-2108192)
- Baloxavir Marboxil Impurity 195 (CAS CATO-C4X-2108195)
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