Brivaracetam Impurity 44 CAS CATO-C4X-200744
| CAS No. | CATO-C4X-200744 |
| Molecular Formula | C22H42N2O5 |
| Molecular Weight | 414.58 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 Brivaracetam Impurity 44 (CAS CATO-C4X-200744), a pharmacopoeial impurity reference standard (molecular formula C22H42N2O5, MW 414.58 g/mol) used for the identification and quantification of trace impurities in APIs.
Brivaracetam Impurity 44 (C22H42N2O5) contains an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | C22H42N2O5 |
| Molecular Weight | 414.58 g/mol |
| Appearance | White to pale yellow crystalline powder |
| Purity | >95% |
| Storage | Store in a cool place (≤25°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) | 3.0 |
| UV Absorption | UV-absorbing |
| Nitrogen Atoms | 2 |
Related Brivaracetam Standards
- Brivaracetam Impurity 132 (CAS CATO-C4X-2007132)
- Brivaracetam Impurity 142 (CAS CATO-C4X-2007142)
- Brivaracetam Impurity 150 (CAS CATO-C4X-2007150)
- Brivaracetam Impurity 137 (CAS CATO-C4X-2007137)
- Brivaracetam Impurity 126 (CAS CATO-C4X-2007126)
- Brivaracetam Impurity 118 (CAS CATO-C4X-2007118)
- Brivaracetam Impurity 89 (CAS CATO-C4X-200789)
- Brivaracetam Impurity 45 (CAS CATO-C4X-200745)
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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