Difelikefalin Impurity 90 CAS CATO-C4X-304190
| CAS No. | CATO-C4X-304190 |
| Molecular Formula | C47H71N7O10 |
| Molecular Weight | 894.11 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 894.11 g/mol gives Difelikefalin Impurity 90 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Difelikefalin Impurity 90 (CAS CATO-C4X-304190) is a certified pharmaceutical impurity reference standard with the molecular formula C47H71N7O10 and a molecular weight of 894.11 g/mol.
Difelikefalin Impurity 90 (C47H71N7O10) 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. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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.
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 | C47H71N7O10 |
| Molecular Weight | 894.11 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°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) | 16.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 7 |
Related Difelikefalin Standards
- Difelikefalin Impurity 88 (CAS CATO-C4X-304188)
- Difelikefalin Impurity 89 (CAS CATO-C4X-304189)
- Difelikefalin Impurity 77 (CAS CATO-C4X-304177)
- Difelikefalin Impurity 60 (CAS 1821319-29-2)
- Difelikefalin Impurity 101 (CAS CATO-C4X-3041101)
- Difelikefalin Impurity 64 (CAS 2269512-88-9)
- Difelikefalin Impurity 20 (CAS CATO-C4X-304120)
- Difelikefalin Impurity 21 (CAS CATO-C4X-304121)
Recommended Standards
- Fmoc-Cys((R)-2,3-di(palmitoyloxy)-propyl)-OH (CAS 139573-77-6)
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- Ombitasvir (CAS 1258226-87-7)
- Fmoc-Cys((S)-2,3-di(palmitoyloxy)-propyl)-OH (CAS 139573-78-7)
- Esmolol Impurity 82 (CAS CATO-C4X-189182)
- Cefdinir Impurity 63 (CAS CATO-C4X-121063)
- Avanafil Impurity 79 (CAS 330785-82-5)
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- 2-(Ethylthio)-1-(4-methoxyphenyl)propan-1-one (CAS 1157221-37-8)
- 1-(Benzo[d]thiazol-2-yl)ethanamine hydrochloride (CAS 1158794-11-6)
- (2S)-2-[[(2s)-2-carboxy-2-[[(2s)-2-(methylamino)-3-phenylpropanoyl]amino]ethyl]amino]-3-(1h-imidazol-5-yl)propanoic acid (CAS 134019-80-0)
- 2,4-Dimethyl(1,3-dioxolan-2-ylmethyl)benzene (CAS 898759-33-6)
- 2-(Difluoromethyl)-3-methoxy-4-methylpyridine-6-acetonitrile (CAS 1805604-20-9)
- Des-Ser32-Tirzepatide (CAS CATO-CPTD788942)
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