Brivaracetam Impurity 31 CAS CATO-C4X-200731
| CAS No. | CATO-C4X-200731 |
| Molecular Formula | C14H17NO3 |
| Molecular Weight | 247.29 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Brivaracetam Impurity 31 (C14H17NO3) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Brivaracetam Impurity 31 (CAS CATO-C4X-200731) is a certified pharmaceutical impurity reference standard with the molecular formula C14H17NO3 and a molecular weight of 247.29 g/mol.
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 | C14H17NO3 |
| Molecular Weight | 247.29 g/mol |
| Appearance | Off-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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 1 |
Related Brivaracetam Standards
- Brivaracetam Impurity 23 (CAS 112459-79-7)
- Brivaracetam Impurity 153 (CAS CATO-C4X-2007153)
- Brivaracetam Impurity 127 (CAS 2052297-74-0)
- Brivaracetam Impurity 207 (CAS CATO-C4X-2007207)
- Brivaracetam Impurity 146 (CAS CATO-C4X-2007146)
- Brivaracetam Impurity 167 (CAS CATO-C4X-2007167)
- Brivaracetam Impurity 170 (CAS CATO-C4X-2007170)
- Brivaracetam Impurity 191 (CAS CATO-C4X-2007191)
Recommended Standards
- Epinastine EP Impurity A (CAS 706753-75-5)
- Lasmiditan Impurity 42 (CAS CATO-C4X-247842)
- Ropinirole Impurity 26 (CAS CATO-C4X-174526)
- Finerenone Impurity 289 (CAS CATO-C4X-2880289)
- Bosutinib Impurity 2 (CAS CATO-C4X-18472)
- Cefadroxil Impurity 49 (CAS CATO-C4X-122449)
- Talazoparib Impurity N57 (CAS 1425767-92-5)
- (1-(Furan-3-yl)-1H-pyrazol-4-yl)boronic acid (CAS 2225169-19-5)
- 5-[Bromoacetamido]tetramethylrhodamine (CAS 166442-38-2)
- 2-(3-(2-Chloro-4-(chlorosulfonyl)phenyl)ureido)pyridin-1-ium hydrogen sulfate (CAS 820245-41-8)
- Cenobamate Impurity 31 (CAS 913088-83-2)
- 2,5-Dibromo-4-pyridinylboronic acid pinacol ester (CAS 1451391-18-6)
- 3-(3,5-Dimethyl-1H-pyrazol-4-yl)propanenitrile (CAS 90090-70-3)
- Nonapeptide-1 (CAS 158563-45-2)
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