Drotaverin Impurity 51 CAS CATO-C4X-243551
| CAS No. | CATO-C4X-243551 |
| Molecular Formula | C25H36N2O4 |
| Molecular Weight | 428.56 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
As a process- or degradation-related impurity, Drotaverin Impurity 51 (CAS CATO-C4X-243551, C25H36N2O4) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Based on its molecular formula C25H36N2O4, Drotaverin Impurity 51 contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 428.56 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C25H36N2O4 |
| Molecular Weight | 428.56 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 2 |
Related Drotaverin Standards
- Drotaverin Impurity 43 (CAS CATO-C4X-243543)
- Drotaverin Impurity 56 (CAS CATO-C4X-243556)
- Drotaverin Impurity 78 (CAS CATO-C4X-243578)
- Drotaverin Impurity 41 (CAS CATO-C4X-243541)
- Drotaverin Impurity 39 (CAS CATO-C4X-243539)
- Drotaverin Impurity 42 (CAS CATO-C4X-243542)
- Drotaverin Impurity 79 (CAS CATO-C4X-243579)
- Drotaverin Impurity N1 (CAS 56046-20-9)
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