Difelikefalin Impurity 105 CAS CATO-C4X-3041105
| CAS No. | CATO-C4X-3041105 |
| Molecular Formula | C25H33N3O4 |
| Molecular Weight | 439.55 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 439.55 g/mol gives Difelikefalin Impurity 105 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Difelikefalin Impurity 105 (CAS CATO-C4X-3041105) is a certified pharmaceutical impurity reference standard with the molecular formula C25H33N3O4 and a molecular weight of 439.55 g/mol.
Difelikefalin Impurity 105 (C25H33N3O4) contains a flavonoid core, 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.
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 | C25H33N3O4 |
| Molecular Weight | 439.55 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 3 |
Related Difelikefalin Standards
- Difelikefalin Impurity 103 (CAS CATO-C4X-3041103)
- Difelikefalin Impurity 104 (CAS CATO-C4X-3041104)
- Difelikefalin Impurity 44 (CAS 957006-52-9)
- Difelikefalin Impurity 91 (CAS CATO-C4X-304191)
- Difelikefalin Impurity 15 (CAS 368866-07-3)
- Difelikefalin Impurity 2 (CAS 1281870-46-9)
- Difelikefalin Impurity 3 (CAS 956977-18-7)
- Difelikefalin Impurity 4 (CAS 1173664-52-2)
Recommended Standards
- 3-(3-(2-(1-(1-Methylpiperidin-4-yl)-1H-pyrazol-4-yl)-7H-pyrrolo[2,3-d]pyrimidin-5-yl)phenyl)pentanenitrile (CAS 1956336-08-5)
- Vildagliptin Impurity 2 (CAS 1036959-23-5)
- (T-4)-Bis[1-(dimethylamino-κN)-2-methyl-2-propanolato-κO]lead (CAS 934302-16-6)
- Vildagliptin Impurity 112 (CAS CATO-C4X-1100112)
- Trimethoprim EP Impurity B (CAS 30806-86-1)
- Ledipasvir Impurity 8 (CAS CATO-C4X-33138)
- Dasatinib Impurity 20 (CAS CATO-C4X-160720)
- Methyl 3-ethyl-3-isopropyloxirane-2-carboxylate (CAS 1482048-97-4)
- (3R)-3-Ethyl-1,4-diazepan-2-one (CAS 922178-62-9)
- N-(2-hydroxyethyl)benzenesulfonamide (CAS 59724-42-4)
- 2-(Bromomethyl)-4-fluoropyridine Hydrobromide (CAS 1416713-60-4)
- 6-Bromo-4-chloro-2-(chloromethyl)quinazoline (CAS 1216816-26-0)
- Flavaprin (CAS 53846-49-4)
- Nonapeptide-1 (CAS 158563-45-2)
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