Baloxavir Impurity 6 CAS CATO-C4X-21086
| CAS No. | CATO-C4X-21086 |
| Molecular Formula | C21H16F2O3S2 |
| Molecular Weight | 418.48 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Baloxavir Impurity 6 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.
CATO supplies Baloxavir Impurity 6 (CAS CATO-C4X-21086), a pharmacopoeial impurity reference standard (molecular formula C21H16F2O3S2, MW 418.48 g/mol) used for the identification and quantification of trace impurities in APIs.
Owing to a steroid core, a sulfone group, a hydroxyl group, an ether linkage, fluorine substitution, Baloxavir Impurity 6 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 418.48 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C21H16F2O3S2 |
| Molecular Weight | 418.48 g/mol |
| Purity | >95% |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | F-containing |
| Sulfur Atoms | 2 |
Related Baloxavir Standards
- Baloxavir Impurity 110 (CAS CATO-C4X-2108110)
- Baloxavir Impurity 111 (CAS CATO-C4X-2108111)
- Baloxavir Impurity 129 (CAS CATO-C4X-2108129)
- Baloxavir Impurity 44 (CAS CATO-C4X-210844)
- Baloxavir Impurity 141 (CAS CATO-C4X-2108141)
- Baloxavir Impurity 21 (CAS 1985607-68-8)
- Baloxavir Impurity 22 (CAS 1985607-69-9)
- Baloxavir Impurity 102 (CAS CATO-C4X-2108102)
Recommended Standards
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- Nifuratel Impurity 19 (CAS CATO-C4X-127219)
- Clotrimazole Impurity 18 (CAS 717109-43-8)
- Sildenafil Impurity 265 (CAS 1829588-57-9)
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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