Perampanel Impurity 56 CAS CATO-C4X-243056
| CAS No. | CATO-C4X-243056 |
| Molecular Formula | C16H12N2O3 |
| Molecular Weight | 280.28 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Perampanel Impurity 56 (CAS CATO-C4X-243056) is a certified pharmaceutical impurity reference standard with the molecular formula C16H12N2O3 and a molecular weight of 280.28 g/mol.
Perampanel Impurity 56 (C16H12N2O3) contains a nitrogen-containing heterocyclic scaffold, 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 | C16H12N2O3 |
| Molecular Weight | 280.28 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | ≥95% |
| 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 2 |
Related Perampanel Standards
- Perampanel impurity 42 (CAS CATO-C4X-243042)
- Perampanel Impurity 53 (CAS 956229-66-6)
- Perampanel Impurity 32 (CAS CATO-C4X-243032)
- Perampanel Impurity 36 (CAS CATO-C4X-243036)
- Perampanel Impurity 23 (CAS CATO-C4X-243023)
- Perampanel Impurity 7 (CAS CATO-C4X-24307)
- Perampanel Impurity 55 (CAS CATO-C4X-243055)
- Perampanel Impurity 57 (CAS CATO-C4X-243057)
Recommended Standards
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- Solriamfetol Impurity 6 (CAS CATO-C4X-25636)
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- Nifekalant Impurity 16 (CAS CATO-C4X-279716)
- Loxoprofen Impurity 82 (CAS CATO-C4X-148882)
- Decitabine Impurity 1 (CAS 1254186-96-3)
- Elagolix Impurity 113 (CAS CATO-C4X-2068113)
- 4-Bromo-5,8-difluoroquinoline-3-carboxylic acid (CAS 1378255-35-6)
- 2-(3-Chlorobenzyl)-3-(3-chlorophenyl)propanoic acid (CAS 1184083-44-0)
- 2,4-Db-Butoxyethyl Ester (CAS 32357-46-3)
- 1,4,7,10-Tetraazacyclotridecane-11,13-dione (CAS 71248-02-7)
- 5,5'-Methylenebis(2-aminobenzoic acid) (CAS 7330-46-3)
- 4-Bromo-2-methyl-6-(trifluoromethoxy)quinoline (CAS 1189107-42-3)
- Semaglutide impurity 84 (CAS CATO-C4X-222684)
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