Azilsartan Impurity 115 CAS CATO-C4X-1096115
| CAS No. | CATO-C4X-1096115 |
| Molecular Formula | C40H30N6O7 |
| Molecular Weight | 706.70 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Azilsartan Impurity 115 (CAS CATO-C4X-1096115) is a certified pharmaceutical impurity reference standard with the molecular formula C40H30N6O7 and a molecular weight of 706.70 g/mol.
Azilsartan Impurity 115 (C40H30N6O7) 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. 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 | C40H30N6O7 |
| Molecular Weight | 706.70 g/mol |
| Purity | 95% |
| 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) | 29.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 6 |
Related Azilsartan Standards
- Azilsartan Impurity 173 (CAS CATO-C4X-1096173)
- Azilsartan Impurity 35 (CAS CATO-C4X-109635)
- Azilsartan Impurity 47 (CAS 1604812-35-2)
- Azilsartan Impurity 153 (CAS 1454372-34-9)
- Azilsartan Impurity 156 (CAS 1454318-12-7)
- Azilsartan Impurity 184 (CAS CATO-C4X-1096184)
- Azilsartan Impurity 98 (CAS CATO-C4X-109698)
- Azilsartan Impurity 123 (CAS CATO-C4X-1096123)
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