Brivaracetam Impurity 28 CAS 183072-03-9
| CAS No. | 183072-03-9 |
| Molecular Formula | C10H11NO2 |
| Molecular Weight | 177.20 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Brivaracetam Impurity 28 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 28 (CAS 183072-03-9) is a certified pharmaceutical impurity reference standard with the molecular formula C10H11NO2 and a molecular weight of 177.20 g/mol.
Owing to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage, Brivaracetam Impurity 28 is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 177.20 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).
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.
Physical & Chemical Properties
| Molecular Formula | C10H11NO2 |
| Molecular Weight | 177.20 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2009 |
| Nitrogen Atoms | 1 |
Related Brivaracetam Standards
- Brivaracetam Impurity 21 (CAS 90719-32-7)
- Brivaracetam Impurity 198 (CAS CATO-C4X-2007198)
- Brivaracetam Impurity 87 (CAS 1956436-60-4)
- Brivaracetam Impurity 206 (CAS CATO-C4X-2007206)
- Brivaracetam impurity 98 (CAS 1262340-22-6)
- Brivaracetam impurity 99 (CAS 1262340-23-7)
- Brivaracetam Impurity 168 (CAS CATO-C4X-2007168)
- Brivaracetam Impurity 169 (CAS CATO-C4X-2007169)
Recommended Standards
- Rimegepant Impurity 118 (CAS CATO-C4X-2487118)
- Verapamil Impurity 24 (CAS 18086-24-3)
- Rimegepant Impurity 146 (CAS CATO-C4X-2487146)
- Ropinirole EP Impurity F (CAS 139122-19-3)
- Semaglutide Impurity 158 (x TFA Salt) (CAS CATO-C4X-2226158)
- Tocopheryl Impurity 21 (Mixture of Isomers) (CAS 37570-32-4)
- Metoclopramide impurity 51 (CAS CATO-C4X-141551)
- 2-((4-Chlorophenyl)sulfonyl)-3-((3-(trifluoromethyl)phenyl)amino)prop-2-enenitrile (CAS 882255-86-9)
- 6-Methoxy-2-methylbenzofuran-7-yl acetate (CAS 88367-31-1)
- 1,4-Bis(4-methyl-1H-imidazol-1-yl)benzene (CAS 1627843-75-7)
- 4-Amino-1-(3-chlorophenyl)-2-pyrrolidinone hydrochloride (CAS 1177291-26-7)
- 3-Bromo-5-(3,3-difluoropiperidin-1-yl)pyridine (CAS 1707365-68-1)
- CAS 2132345-14-1 (CAS 2132345-14-1)
- Human glucagon CRS (CAS 9007-92-5)
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