Baloxavir Impurity 43 CAS 1370250-39-7
| CAS No. | 1370250-39-7 |
| Molecular Formula | C17H17N3O4 |
| Molecular Weight | 327.33 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.
Baloxavir Impurity 43 (CAS 1370250-39-7) is a certified pharmaceutical impurity reference standard with the molecular formula C17H17N3O4 and a molecular weight of 327.33 g/mol.
The molecular framework of Baloxavir Impurity 43 (C17H17N3O4) is characterized by a flavonoid core, an amide group, a hydroxyl group, an ether linkage. 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. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
CATO manufactures Baloxavir Impurity 43 under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C17H17N3O4 |
| Molecular Weight | 327.33 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | ≥95% |
| 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 |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
| Nitrogen Atoms | 3 |
Related Baloxavir Standards
- Baloxavir Impurity 1 (CAS 1985607-70-2)
- Baloxavir Impurity 27 (CAS 2762066-94-2)
- Baloxavir Marboxil Impurity 233 (CAS CATO-C4X-2108233)
- Baloxavir Impurity 54 (CAS 2365472-39-3)
- Baloxavir Marboxil Impurity 236 (CAS CATO-C4X-2108236)
- Baloxavir Marboxil Impurity 182 (CAS CATO-C4X-2108182)
- Baloxavir Marboxil Impurity 183 (CAS CATO-C4X-2108183)
- Baloxavir Marboxil Impurity 227 (CAS CATO-C4X-2108227)
Recommended Standards
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- Perindopril Impurity 13 (CAS 65166-97-4)
- Apremilast Impurity 40 (CAS 2055542-18-0)
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- 4-((2,4-Dichlorophenoxy)methyl)benzohydrazide (CAS 834913-45-0)
- Macrocyclic Peptide flaviviridae Viruses InhibitorDISCONTINUED (CAS 1510840-70-6)
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