Brivaracetam impurity 95 CAS 2052297-73-9
| CAS No. | 2052297-73-9 |
| Molecular Formula | C10H16O4 |
| Molecular Weight | 200.23 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Brivaracetam impurity 95 (CAS 2052297-73-9) is a certified pharmaceutical impurity reference standard with the molecular formula C10H16O4 and a molecular weight of 200.23 g/mol.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, Brivaracetam impurity 95 is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 200.23 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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.
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 | C10H16O4 |
| Molecular Weight | 200.23 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1997 |
Related Brivaracetam Standards
- Brivaracetam Impurity 69 (CAS CATO-C4X-200769)
- Brivaracetam impurity 86 (CAS CATO-C4X-200786)
- Brivaracetam Impurity 188 (CAS CATO-C4X-2007188)
- Brivaracetam Impurity 76 (CAS 1928755-17-2)
- Brivaracetam Impurity 87 (CAS CATO-C4X-200787)
- Brivaracetam Impurity 171 (CAS CATO-C4X-2007171)
- Brivaracetam impurity 112 (CAS 10414-69-4)
- Brivaracetam Impurity 203 (CAS CATO-C4X-2007203)
Recommended Standards
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