Brivaracetam Impurity 136 CAS CATO-C4X-2007136
| CAS No. | CATO-C4X-2007136 |
| Molecular Formula | C12H23N3O4 |
| Molecular Weight | 273.33 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 136.
Brivaracetam Impurity 136 (CAS CATO-C4X-2007136) is a certified pharmaceutical impurity reference standard with the molecular formula C12H23N3O4 and a molecular weight of 273.33 g/mol.
Brivaracetam Impurity 136 (C12H23N3O4) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.
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 | C12H23N3O4 |
| Molecular Weight | 273.33 g/mol |
| Appearance | White to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| 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 | 3 |
Related Brivaracetam Standards
- Brivaracetam impurity 103 (CAS 114148-86-6)
- Brivaracetam Impurity 177 (CAS CATO-C4X-2007177)
- Brivaracetam Impurity 187 (CAS CATO-C4X-2007187)
- Brivaracetam Impurity 123 (CAS CATO-C4X-2007123)
- Brivaracetam Impurity 151 (CAS CATO-C4X-2007151)
- Brivaracetam Impurity 202 (CAS CATO-C4X-2007202)
- Brivaracetam Impurity 174 (CAS CATO-C4X-2007174)
- Brivaracetam Impurity 117 (CAS CATO-C4X-2007117)
Recommended Standards
- Carglumic Acid Impurity 14 (CAS CATO-C4X-207914)
- Adrenaline EP Impurity D (CAS 317351-40-9)
- Lumateperone impurity 61 (CAS CATO-C4X-220161)
- Adrenaline Impurity 34 (CAS 1095714-91-2)
- Pralatrexate Impurity 2 (CAS 2028268-08-6)
- Relugolix Impurity 81 (CAS CATO-C4X-242981)
- Ruxolitinib impurity 52 (CAS CATO-C4X-205852)
- 2-Amino-1-(1-methyl-1h-pyrrol-2-yl)ethan-1-ol (CAS 926248-64-8)
- 1-Ethyl-4-methylquinolin-1-ium iodide (CAS 605-59-4)
- n1-[4-(propan-2-yloxy)phenyl]ethane-1,2-diamine (CAS 1082371-77-4)
- 3-(4-Methoxy-2-methylphenyl)azetidin-3-ol (CAS 1388054-92-9)
- 4-Chloro-7-methoxyquinoline-3-carbonitrile (CAS 73387-74-3)
- (2R,3S,4S,5R,6R)-2-(Hydroxymethyl)-6-(6-((3-methylbut-2-en-1-yl)amino)-7H-purin-7-yl)tetrahydro-2H-pyran-3,4,5-triol (CAS 59384-58-6)
- Fibronectin Adhesion-Promoting Peptide (CAS 125720-21-0)
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