Irbesartan Impurity 3 CAS 15026-80-9
| CAS No. | 15026-80-9 |
| Molecular Formula | C11H19NO3 |
| Molecular Weight | 213.27 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of Irbesartan Impurity 3 (C11H19NO3) is characterized by an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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).
Irbesartan Impurity 3 (CAS 15026-80-9) is a certified pharmaceutical impurity reference standard with the molecular formula C11H19NO3 and a molecular weight of 213.27 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), Irbesartan Impurity 3 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 | C11H19NO3 |
| Molecular Weight | 213.27 g/mol |
| Appearance | White to pale yellow crystalline powder |
| Purity | 97%+ |
| 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) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1961 |
| Nitrogen Atoms | 1 |
Related Irbesartan Standards
- Irbesartan Impurity 23 (CAS CATO-C4X-166623)
- Irbesartan Impurity 2 (CAS 177219-40-8)
- Irbesartan Impurity 42 (CAS CATO-C4X-166642)
- Irbesartan Impurity 44 (CAS CATO-C4X-166644)
- Irbesartan Impurity 46 (CAS CATO-C4X-166646)
- Irbesartan Impurity 48 (CAS 253269-07-7)
- Irbesartan impurity 37 (CAS 1415462-83-7)
- Irbesartan Impurity 17 (CAS CATO-C4X-166617)
Recommended Standards
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- 6-oxo-6-(piperidin-1-yl)hexanoic acid (CAS 1862-16-4)
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- 3-Carboxy-6-methoxyquinoline 6-methoxyquinoline-3-carboxylic acid 71082-47-8 (CAS 71082-47-8)
- Pemafibrate Impurity 31 (CAS CATO-C4X-290331)
- Felodipine Impurity 38 (CAS CATO-C4X-109438)
- Bempedoic Acid Impurity 41 (CAS CATO-C4X-218941)
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- (4-Fluoro-benzyl)-(4-methoxy-benzyl)-aminehydrochloride (CAS 1185300-94-0)
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- 4-(4-Bromo-2-chlorophenyl)-2,6-dichloropyrimidine (CAS 1551566-32-5)
- Semaglutide impurity 43 (CAS CATO-C4X-222643)
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