Barloxavir impurity 89 CAS 2567938-30-9
| CAS No. | 2567938-30-9 |
| Molecular Formula | C14H8F2OS |
| Molecular Weight | 262.27 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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 supplies Barloxavir impurity 89 (CAS 2567938-30-9), a pharmacopoeial impurity reference standard (molecular formula C14H8F2OS, MW 262.27 g/mol) used for the identification and quantification of trace impurities in APIs.
Structurally, Barloxavir impurity 89 (C14H8F2OS) contains sulfur-containing functionality, a hydroxyl group, an ether linkage, fluorine substitution, a polycyclic aromatic system. The molecule exhibits a degree of unsaturation (DBE) of 10.0, corresponding to approximately 10 ring(s) or double-bond equivalent(s). With a molecular weight of 262.27 g/mol, it falls into the medium-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C14H8F2OS |
| Molecular Weight | 262.27 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2001 |
| Halogen Content | F-containing |
| Sulfur Atoms | 1 |
Related Barloxavir Standards
- Barloxavir impurity 98 (CAS CATO-C4X-210898)
- Barloxavir impurity 83 (CAS 157652-27-2)
- Barloxavir impurity 91 (CAS 1057218-86-6)
- Barloxavir impurity 81 (CAS 2814504-20-4)
- Barloxavir impurity 86 (CAS 2396727-68-5)
- Barloxavir Impurity 84 (CAS CATO-C4X-210884)
- Barloxavir impurity 82 (CAS 2305694-79-3)
- Barloxavir impurity C718 (CAS 1370250-38-6)
Recommended Standards
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- Relugolix Impurity 57 (CAS CATO-C4X-242957)
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- Besudil Impurity 10 (CAS CATO-C4X-298810)
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Why CATO?
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