Valsartan Impurity 41 CAS CATO-C4X-105741
| CAS No. | CATO-C4X-105741 |
| Molecular Formula | C26H32N2O3 |
| Molecular Weight | 420.54 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.
Valsartan Impurity 41 (CAS CATO-C4X-105741) is a certified pharmaceutical impurity reference standard with the molecular formula C26H32N2O3 and a molecular weight of 420.54 g/mol.
Based on its molecular formula C26H32N2O3, Valsartan Impurity 41 contains a steroid 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 420.54 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).
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 | C26H32N2O3 |
| Molecular Weight | 420.54 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 2 |
Related Valsartan Standards
- Valsartan Impurity 101 (CAS CATO-C4X-1057101)
- Valsartan EP Impurity C (CAS 952652-79-8)
- Valsartan Impurity 146 (CAS CATO-C4X-1057146)
- Valsartan Impurity 129 (CAS CATO-C4X-1057129)
- Valsartan Impurity 92 (CAS CATO-C4X-105792)
- Valsartan Impurity 63 (CAS CATO-C4X-105763)
- Valsartan Impurity 94 (CAS 1283097-98-2)
- Valsartan Impurity 116 (CAS CATO-C4X-1057116)
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