Brivaracetam Impurity 183 CAS CATO-C4X-2007183
| CAS No. | CATO-C4X-2007183 |
| Molecular Formula | C12H21NO3 |
| Molecular Weight | 227.30 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Brivaracetam Impurity 183 is closely related to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies Brivaracetam Impurity 183 (CAS CATO-C4X-2007183), a pharmacopoeial impurity reference standard (molecular formula C12H21NO3, MW 227.30 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 183 is typically white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 227.30 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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 | C12H21NO3 |
| Molecular Weight | 227.30 g/mol |
| Appearance | White to pale yellow crystalline powder |
| Purity | ≥95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| Nitrogen Atoms | 1 |
Related Brivaracetam Standards
- Brivaracetam Impurity 200 (CAS CATO-C4X-2007200)
- Brivaracetam Impurity 38 (CAS CATO-C4X-200738)
- Brivaracetam Impurity 73 (CAS 2052297-80-8)
- Brivaracetam Impurity 61 (CAS CATO-C4X-200761)
- Brivaracetam Impurity 78 (CAS CATO-C4X-200778)
- Brivaracetam Impurity 82 (CAS CATO-C4X-200782)
- Brivaracetam Impurity 9 (CAS CATO-C4X-20079)
- Brivaracetam Impurity 56 (CAS CATO-C4X-200756)
Recommended Standards
- Venlafaxine Impurity 79 (CAS 80526-53-0)
- Venlafaxine Impurity 61 (CAS 2641915-09-3)
- Terbutaline Impurity 41 (CAS CATO-C4X-118341)
- 948288-96-8 6,8-Dimethyl-4-hydroxyquinoline-3-carboxylic acid DTXSID50352142 (CAS 948288-96-8)
- Sarpogrelate Impurity 31 (CAS 167145-28-0)
- Azelastine Impurity 35 (CAS CATO-C4X-139635)
- Flomoxef Impurity 32 (CAS CATO-C4X-138232)
- (3-Chlorostyryl)boronic acid (CAS 214907-21-8)
- 2-(3-Methoxyphenyl)-4-methyl-6-[1-(4-methylphenyl)-1H-pyrazol-5-yl]-2,3,4,5-tetrahydro-1,2,4-triazine-3,5-dione (CAS 321538-35-6)
- 4-(4-Chlorophenyl)-2,2,4-trimethyl-1,2,3,4-tetrahydroquinoline (CAS 35106-46-8)
- 4-(5-Bromopyrimidin-4-yl)-2,3-dimethylthiomorpholine (CAS 1713415-38-3)
- Ganglioside GM1 (CAS 37758-47-7)
- N-(2,4-Dichlorophenyl)-2-(2-mercapto-4-oxo-4,5-dihydro-1,3-thiazol-5-yl)acetamide (CAS 1142200-26-7)
- Insulin Degludec Impurity 3 (CAS CATO-C4X-21573)
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