Brivaracetam Impurity 140 CAS CATO-C4X-2007140
| CAS No. | CATO-C4X-2007140 |
| Molecular Formula | C7H14Br2 |
| Molecular Weight | 257.99 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Brivaracetam Impurity 140.
Brivaracetam Impurity 140 (CAS CATO-C4X-2007140) is a certified pharmaceutical impurity reference standard with the molecular formula C7H14Br2 and a molecular weight of 257.99 g/mol.
Owing to bromine substitution, Brivaracetam Impurity 140 is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 257.99 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.
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 | C7H14Br2 |
| Molecular Weight | 257.99 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO |
| Stability | Stable under recommended storage conditions |
| Degree of Unsaturation (DBE) | 0.0 |
| Halogen Content | Br-containing |
Related Brivaracetam Standards
- Brivaracetam impurity 01 (CAS 748760-80-7)
- Brivaracetam Impurity 84 (CAS CATO-C4X-200784)
- Brivaracetam Impurity 149 (CAS CATO-C4X-2007149)
- Brivaracetam Impurity 33 (CAS CATO-C4X-200733)
- Brivaracetam impurity 108 (CAS CATO-C4X-2007108)
- Brivaracetam Impurity 124 (CAS CATO-C4X-2007124)
- Brivaracetam Impurity 186 (CAS CATO-C4X-2007186)
- Brivaracetam Impurity 152 (CAS CATO-C4X-2007152)
Recommended Standards
- 2,6-dimethyl-4-phenyl-pyridine-3,5-dicarboxylic acid 2,6-dimethyl-4-phenylpyridine-3,5-dicarboxylic acid 4549-31-9 A826824 (CAS 4549-31-9)
- (4-Ethyl-2-(trifluoromethyl)-4H-pyrrolo[3,2-b]pyridin-6-yl)boronic acid (CAS 2918994-26-8)
- 3,3-Bis(bromomethyl)pentane (CAS 67969-84-0)
- 2-Bromo-6-fluoro-4-(trifluoromethyl)aniline (CAS 1034325-63-7)
- Dabrafenib Impurity 40 (CAS CATO-C4X-303340)
- Olopatadine impurity 146 (CAS CATO-C4X-1135146)
- Azelnidipine Impurity 9 (CAS CATO-C4X-10409)
- 4-(Chloromethyl)-2-(3-fluorophenyl)thiazole (CAS 953736-97-5)
- 7-Bromo-1,1,1-trifluoroheptan-2-one (CAS 647831-24-1)
- Adipic Acid-D8 (CAS 25373-21-1)
- 4-(((2-(4-Bromophenyl)pyrazolo[1,5-a]pyrazin-4-yl)thio)methyl)-5-methyl-2-(p-tolyl)oxazole (CAS 1207026-47-8)
- (2-(Difluoromethyl)-3-fluoro-6-methoxypyridin-4-yl)methanamine (CAS 1806929-33-8)
- 5-Bromo-1-(cyanomethyl)-1H-indole-2-carboxylic acid (CAS 1032715-49-3)
- [Ser]8-Acetylated Semaglutide (CAS CATO-C4X-2226218)
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