Azilsartan Impurity 118 CAS CATO-C4X-1096118
| CAS No. | CATO-C4X-1096118 |
| Molecular Formula | C22H16N4O6 |
| Molecular Weight | 432.39 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, Azilsartan Impurity 118 (CAS CATO-C4X-1096118, C22H16N4O6) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Structurally, Azilsartan Impurity 118 (C22H16N4O6) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 17.0, corresponding to approximately 17 ring(s) or double-bond equivalent(s). With a molecular weight of 432.39 g/mol, it falls into the moderately-high-molecular-weight range. 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 | C22H16N4O6 |
| Molecular Weight | 432.39 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| 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) | 17.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 4 |
Related Azilsartan Standards
- Azilsartan Impurity 175 (CAS CATO-C4X-1096175)
- Azilsartan Impurity 3 (CAS CATO-C4X-10963)
- Azilsartan Impurity 32 (CAS CATO-C4X-109632)
- Azilsartan Impurity 7 (CAS 1397836-49-5)
- Azilsartan Impurity N2 (CAS 1675221-59-6)
- Azilsartan Impurity 108 (CAS 2378769-58-3)
- Azilsartan Impurity 5 (CAS 147404-76-0)
- Azilsartan Impurity 14 (CAS 1442400-68-1)
Recommended Standards
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- N-(3,4-dimethoxyphenyl)-2-oxo-1-(3-(trifluoromethyl)benzyl)-1,2-dihydropyridine-3-carboxamide (CAS 339027-73-5)
- Torin 2 (CAS 1223001-51-1)
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- Avanafil Impurity 73 (CAS 59566-45-9)
- N-(2-cyclopentyl-2-methylpropyl)thietan-3-amine (CAS 1856773-04-0)
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- Pramipexole Impurity 8 (CAS 936751-11-0)
- N-Benzyl Fluoro Aniline (CAS 370-77-4)
- (2-(Pyridin-2-ylmethyl)-2,4,5,7-tetrahydropyrano[3,4-c]pyrazol-7-yl)methanamine (CAS 1422138-19-9)
- Methyl 4-(2,6-Difluorophenyl)-2,4-dioxobutanoate (CAS 1037130-74-7)
- SAMS Peptide (CAS 125911-68-4)
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