Brivaracetam Impurity 26 CAS 1956435-91-8
| CAS No. | 1956435-91-8 |
| Molecular Formula | C9H17BrO2 |
| Molecular Weight | 237.13 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Brivaracetam Impurity 26 under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Brivaracetam Impurity 26 (CAS 1956435-91-8) is a certified pharmaceutical impurity reference standard with the molecular formula C9H17BrO2 and a molecular weight of 237.13 g/mol.
Brivaracetam Impurity 26 (C9H17BrO2) contains a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution. Halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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 | C9H17BrO2 |
| Molecular Weight | 237.13 g/mol |
| Purity | >95% |
| Storage | Store at room temperature, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 1.0 |
| CAS Registry Year (est.) | 1996 |
| Halogen Content | Br-containing |
Related Brivaracetam Standards
- Brivaracetam impurity 106 (CAS CATO-C4X-2007106)
- Brivaracetam Impurity 57 (CAS CATO-C4X-200757)
- Brivaracetam Impurity 156 (CAS 2766177-03-9)
- Brivaracetam Impurity 173 (CAS CATO-C4X-2007173)
- 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)
Recommended Standards
- Tianeptine EP Impurity A (CAS 29823-18-5)
- Naproxen Impurity 54 (CAS 1268842-11-0)
- 1-(3-Methyl-4-nitro-5-(trifluoromethyl)-1H-pyrazol-1-yl)ethan-1-one (CAS 1017793-88-2)
- Thioctic acid impurity 61 (CAS 26825-92-3)
- Bilastine impurity 87 (CAS 2890196-78-6（free base）)
- Tolvaptan Impurity 26 (CAS 1580889-25-3)
- Carbocisteine Impurity 52 (CAS CATO-C4X-201052)
- 2-[(1,4-Dihydro-5,6-Dimethyl-4-Oxothieno[2,3-d]Pyrimidin-2-ylThio]-N-(3-Fluorophenyl)-Acetamide (CAS 606108-13-8)
- 4-Amino-3-(hydroxymethyl)benzonitrile (CAS 76163-62-7)
- (2R,3S,4R,5S,6S)-3-Fluoro-6-methyltetrahydro-2H-pyran-2,4,5-triol (CAS 74554-11-3)
- Methyl 2-(4-methoxyphenyl)-2-(piperidin-1-yl)acetate hydrochloride (CAS 1922720-23-7)
- Dextromethorphan-D3 (CAS 524713-56-2)
- 5-Phenylhexahydro-4,7-methano-2-benzofuran-1,3-dione (CAS 73252-09-2)
- (D-Trp32)-Neuropeptide Y (porcine) trifluoroacetate salt (CAS 153549-78-1)
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