Baloxavir Marboxil Impurity 228 CAS CATO-C4X-2108228
| CAS No. | CATO-C4X-2108228 |
| Molecular Formula | C16H23N3O4 |
| Molecular Weight | 321.37 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Baloxavir Marboxil Impurity 228 (CAS CATO-C4X-2108228), a pharmacopoeial impurity reference standard (molecular formula C16H23N3O4, MW 321.37 g/mol) used for the identification and quantification of trace impurities in APIs.
Owing to a flavonoid core, an amide group, a hydroxyl group, an ether linkage, Baloxavir Marboxil Impurity 228 is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 321.37 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
As a certified reference material (CRM), Baloxavir Marboxil Impurity 228 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 | C16H23N3O4 |
| Molecular Weight | 321.37 g/mol |
| Appearance | Off-white to pale 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 3 |
Related Baloxavir Standards
- Baloxavir Marboxil Impurity 182 (CAS CATO-C4X-2108182)
- Baloxavir Marboxil Impurity 183 (CAS CATO-C4X-2108183)
- Baloxavir Marboxil Impurity 227 (CAS CATO-C4X-2108227)
- Baloxavir Impurity 28 (CAS 2762066-97-5)
- Baloxavir Impurity 50 (CAS 2136287-67-5)
- Baloxavir Impurity 66 (CAS CATO-C4X-210866)
- Baloxavir Impurity 71 (CAS 2390386-54-4)
- Baloxavir Marboxil Impurity 236 (CAS CATO-C4X-2108236)
Recommended Standards
- Vilanterol Impurity 39 (CAS 452339-71-8)
- Vilanterol Impurity 18 (CAS CATO-C4X-193518)
- Carteolol Impurity 34 (CAS CATO-C4X-228734)
- Vilanterol Impurity 17 (CAS CATO-C4X-193517)
- Terbinafine Impurity 13 HCl (CAS CATO-C4X-133850)
- Terazolamide Impurity 83 (CAS 12150-46-8)
- Sildenafil Impurity 267 (CAS 2305789-77-7)
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- Amylin (8-37) (mouse, rat) (CAS 138398-61-5)
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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