Difelikefalin Impurity 26 CAS CATO-C4X-304126
| CAS No. | CATO-C4X-304126 |
| Molecular Formula | C12H24N4O3 |
| Molecular Weight | 272.34 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
As a process- or degradation-related impurity, Difelikefalin Impurity 26 (CAS CATO-C4X-304126, C12H24N4O3) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Difelikefalin Impurity 26 (C12H24N4O3) 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).
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.
Physical & Chemical Properties
| Molecular Formula | C12H24N4O3 |
| Molecular Weight | 272.34 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 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 | 4 |
Related Difelikefalin Standards
- Difelikefalin Impurity 68 (CAS CATO-C4X-304168)
- Difelikefalin Impurity 27 (CAS 123442-34-2)
- Difelikefalin Impurity 46 (CAS 1021171-64-1)
- Difelikefalin Impurity 7 (CAS 956233-15-1)
- Difelikefalin Impurity 95 (CAS CATO-C4X-304195)
- Difelikefalin Impurity 1 (CAS 956242-62-9)
- Difelikefalin Impurity 29 (CAS CATO-C4X-304129)
- Difelikefalin Impurity 2 (CAS 1281870-46-9)
Recommended Standards
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- Ethyl (5-chloro-2-hydroxybenzyl)glycinate (CAS 1183756-79-7)
- N-(2-(4-Bromophenyl)propyl)propane-2-sulfonamide (CAS 211311-65-8)
- (R)-6-fluoro-1,9-dimethyl-2,3,4,5-tetrahydro-1H-pyrido[4,3-b]indole (CAS 2408686-84-8)
- 2-Methoxy-5-(trifluoromethyl)isonicotinic acid (CAS 1227516-73-5)
- Insulin Degludec Impurity 20 (CAS CATO-C4X-215720)
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