Brivaracetam Impurity 173 CAS CATO-C4X-2007173
| CAS No. | CATO-C4X-2007173 |
| Molecular Formula | C12H12N2O3 |
| Molecular Weight | 232.24 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 173 (CAS CATO-C4X-2007173), a pharmacopoeial impurity reference standard (molecular formula C12H12N2O3, MW 232.24 g/mol) used for the identification and quantification of trace impurities in APIs.
Owing to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage, Brivaracetam Impurity 173 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 232.24 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).
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 | C12H12N2O3 |
| Molecular Weight | 232.24 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 2 |
Related Brivaracetam Standards
- Brivaracetam Impurity 193 (CAS CATO-C4X-2007193)
- Brivaracetam Impurity 205 (CAS CATO-C4X-2007205)
- Brivaracetam impurity 110 (CAS 1997309-40-6)
- Brivaracetam Impurity 13 (CAS 2252417-17-5)
- Brivaracetam Impurity 159 (CAS CATO-C4X-2007159)
- Brivaracetam Impurity 10 (CAS CATO-C4X-200710)
- Brivaracetam impurity 105 (CAS 2413102-60-8)
- Brivaracetam Impurity 11 (CAS CATO-C4X-200711)
Recommended Standards
- Phenobarbital (CAS 50-06-6)
- Nalidixic Acid (CAS 389-08-2)
- Letrozole Impurity 5 (CAS 32446-66-5)
- Panidazole (CAS 13752-33-5)
- Metoprolol EP Impurity M DiHCl (CAS 73313-36-7)
- Isavuconazole Impurity 218 (CAS CATO-C4X-1236218)
- Loxoprofen Impurity 26 (CAS CATO-C4X-148826)
- 4-Amino-1-methyl-5-nitro-1H-pyrazole-3-carboxylic acid (CAS 107259-81-4)
- O-(2-Bromoethyl)hydroxylamine hydrobromide (CAS 65920-18-5)
- 3-Hydroxy-1-(3-methoxyphenyl)cyclobutane-1-carboxylic acid (CAS 1485472-51-2)
- 6-Amino-5-propylamino-1-methyluracil (CAS 125092-42-4)
- 2-(2,3-Difluorophenyl)-3-methylbutanoic acid (CAS 1342082-49-8)
- 2-(((2,4-Dichlorobenzyl)oxy)methyl)pyrrolidine hydrochloride (CAS 1289387-01-4)
- D-[Thr]7-Liraglutide (CAS CATO-C4X-199237)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com