Barloxavir impurity 93 CAS CATO-C4X-210893
| CAS No. | CATO-C4X-210893 |
| Molecular Formula | C15H16N2O4 |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Structurally, Barloxavir impurity 93 (C15H16N2O4HCl) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 8.0, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 324.76 g/mol, it falls into the moderately-high-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Barloxavir impurity 93 (CAS CATO-C4X-210893) is a certified pharmaceutical impurity reference standard with the molecular formula C15H16N2O4HCl and a molecular weight of 324.76 g/mol.
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), Barloxavir impurity 93 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 | C15H16N2O4 HCl |
| Molecular Weight | 324.76 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Barloxavir Standards
- Barloxavir impurity 91 (CAS 1057218-86-6)
- Barloxavir impurity C718 (CAS 1370250-38-6)
- Barloxavir impurity 83 (CAS 157652-27-2)
- Barloxavir impurity 79 (CAS 2136287-93-7)
- Barloxavir impurity 82 (CAS 2305694-79-3)
- Barloxavir impurity 86 (CAS 2396727-68-5)
- Barloxavir impurity 92 (CAS 2460686-98-8)
- Barloxavir impurity 89 (CAS 2567938-30-9)
Recommended Standards
- Tegoprazan impurity 39 (CAS CATO-C4X-229739)
- Ozagrel Impurity N5 (CAS 1866-39-3)
- Flubendazole EP Impurity G (CAS CATO-C4X-24387)
- 7-(3-Aminopyrrolidin-1-yl-1-Cyclopropyl-6-Fluoro-8-Methoxy-5-Methyl-4-Oxoquinoline-3-Carboxylic Acid Hydrochloride (CAS 178173-90-5)
- 6-Fluoro-2,3'-bipyridine (CAS 1214335-26-8)
- 3-Methylsulfonyl-2,3',4',5-tetrachlorobiphenyl (CAS 116807-53-5)
- 2-(4-Bromophenyl)-5-[2-(methylsulfanyl)phenyl]-1,3,4-oxadiazole (CAS 339014-40-3)
- 2-(Chloromethyl)-4H-pyrido[2,3-d][1,3]oxazin-4-one (CAS 886363-79-7)
- 3-bromo-1-methyl-1H,4H,5H-pyrazolo[3,4-d]pyrimidin-4-one (CAS 54738-70-4)
- Tau Peptide (268-282) trifluoroacetate salt (CAS 330456-37-6)
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