Brivaracetam Impurity 197 CAS CATO-C4X-2007197
| CAS No. | CATO-C4X-2007197 |
| Molecular Formula | C10H19ClO2 |
| Molecular Weight | 206.71 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Brivaracetam Impurity 197 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.
Brivaracetam Impurity 197 (CAS CATO-C4X-2007197) is a certified pharmaceutical impurity reference standard with the molecular formula C10H19ClO2 and a molecular weight of 206.71 g/mol.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, Brivaracetam Impurity 197 is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 206.71 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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.
Physical & Chemical Properties
| Molecular Formula | C10H19ClO2 |
| Molecular Weight | 206.71 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 1.0 |
| Halogen Content | Cl-containing |
Related Brivaracetam Standards
- Brivaracetam Impurity 18 (CAS 1942054-60-5)
- Brivaracetam Impurity 42 (CAS 2101641-92-1)
- Brivaracetam Impurity 67 (CAS 357338-13-7)
- Brivaracetam Impurity 76 (CAS 1928755-17-2)
- Brivaracetam Impurity 87 (CAS CATO-C4X-200787)
- Brivaracetam Impurity 188 (CAS CATO-C4X-2007188)
- Brivaracetam Impurity 165 (CAS CATO-C4X-2007165)
- Brivaracetam (CAS 357336-20-0)
Recommended Standards
- Thioctic acid impurity 60 (CAS 105484-55-7)
- 7-chloro-2-methyl-1,3-benzothiazol-6-amine (CAS 1221931-63-0)
- Octan-2-yl 2-chloroacetate (CAS 20411-47-6)
- 4-chloro-6-ethylthieno[3,2-d]pyrimidine (CAS 1408074-92-9)
- Rasagiline Impurity 49 (CAS 1312077-05-6(free base))
- Crisaborole Impurity 133 (CAS CATO-C4X-2021133)
- Perampanel impurity 41 (CAS CATO-C4X-243041)
- 5-(1,3-Diphenylpropan-2-yl)-3-methylisoxazole (CAS 41027-45-6)
- Bisoprolol Impurity 123 (CAS CATO-C4X-1247123)
- N-(4-chloro-2-formylphenyl)acetamide (CAS 53165-18-7)
- 3,5-Dichloro-4-(difluoromethoxy)phenylacetonitrile (CAS 1806352-91-9)
- 3-(Difluoromethoxy)-1-methyl-1H-pyrazole-5-carboxylic acid (CAS 1227002-29-0)
- tert-Butyl 6-(2-ethoxy-2-oxoethyl)-4H-thieno[3,2-b]pyrrole-4-carboxylate (CAS 171513-19-2)
- Semaglutide impurity 48 (CAS CATO-C4X-222648)
Why CATO?
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