Azilsartan Impurity 91 CAS 61063-11-4
| CAS No. | 61063-11-4 |
| Molecular Formula | C9H10N2O4 |
| Molecular Weight | 210.19 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C9H10N2O4, Azilsartan Impurity 91 contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 210.19 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).
Azilsartan Impurity 91 (CAS 61063-11-4) is a certified pharmaceutical impurity reference standard with the molecular formula C9H10N2O4 and a molecular weight of 210.19 g/mol.
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 certified reference material (CRM), Azilsartan Impurity 91 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C9H10N2O4 |
| Molecular Weight | 210.19 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1974 |
| Nitrogen Atoms | 2 |
Related Azilsartan Standards
- Azilsartan Impurity N1 (CAS 1234834-29-7)
- Azilsartan Impurity 60 (CAS CATO-C4X-109660)
- Azilsartan impurity 145 (CAS CATO-C4X-1096145)
- Azilsartan Impurity 72 (CAS 21606-04-2)
- Azilsartan Impurity 174 (CAS 2382294-55-3)
- Azilsartan Impurity 37 (CAS 80841-79-8)
- Azilsartan Impurity 31 (CAS 10072-05-6)
- Azilsartan Impurity 75 (CAS 2826360-62-5)
Recommended Standards
- Dabigatran Impurity 87 (CAS 36242-50-9)
- Omeprazole Impurity 64 (CAS 50651-39-3)
- (S)-3-AMINO-3-(3-NITRO-PHENYL)-PROPIONIC ACID (CAS 734529-57-8)
- Cefuroxime Impurity 82 (CAS CATO-C4X-124582)
- Leuprorelin EP Impurity H Trifluoroacetic acid (CAS 112710-58-4(free base))
- Dotinurad Impurity 18 (CAS CATO-C4X-249418)
- Tapentadol Nitroso Impurity 6 (CAS CATO-C4X-20996)
- N-(4-Ethylbenzo[d]thiazol-2-yl)-2,3-dimethoxybenzamide (CAS 895444-94-7)
- N,N'-(6-(Ethylthio)pyrimidine-2,4-diyl)diacetamide (CAS 88380-66-9)
- N-methyl-1-(4-methylthiazol-2-yl)methanamine dihydrochloride (CAS 1262771-15-2)
- (2Z)-2-[(3-Bromophenyl)methylidene]-7-(4-chlorophenoxy)-3-phenyl-2,3-dihydro-1H-inden-1-one (CAS 337921-37-6)
- 6-fluoro-1H-pyrazolo[4,3-b]pyridin-3-amine (CAS 1207530-00-4)
- (E)-N'-[7-(Furan-2-yl)-[1,2,4]triazolo[1,5-a]pyrimidin-2-yl]-N,N-dimethylmethanimidamide (CAS 303145-91-7)
- Semaglutide (CAS 910463-68-2)
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