Olmesartan Medoxomilum EP Impurity A CAS 144689-24-7
| CAS No. | 144689-24-7 |
| Molecular Formula | C24H26N6O3 |
| Molecular Weight | 446.50 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 446.50 g/mol gives Olmesartan Medoxomilum EP Impurity A distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies Olmesartan Medoxomilum EP Impurity A (CAS 144689-24-7), a pharmacopoeial impurity reference standard (molecular formula C24H26N6O3, MW 446.50 g/mol) used for the identification and quantification of trace impurities in APIs.
Based on its molecular formula C24H26N6O3, Olmesartan Medoxomilum EP Impurity A 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 446.50 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.
As a certified reference material (CRM), Olmesartan Medoxomilum EP Impurity A 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 | C24H26N6O3 |
| Molecular Weight | 446.50 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) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1998 |
| Nitrogen Atoms | 6 |
Related Olmesartan Standards
- Olmesartan Methyl Ketone (CAS 1227626-45-0)
- Olmesartan- D4 (CAS 1420880-41-6)
- Olmesartan-d6 Acid (CAS 1185144-74-4)
- Olmesartan Methyl Ether (CAS 1039762-40-7)
- Olmesartan Impurity 20 (CAS 1347262-29-6)
- Olmesartan impurity 5 (CAS CATO-C4X-10975)
- Olmesartan Impurity 33 (CAS CATO-C4X-109733)
- Olmesartan impurity 103 (CAS CATO-C4X-1097103)
Recommended Standards
- Ibrutinib Impurity 132 (CAS CATO-C4X-1064132)
- Ligagliptin impurity 105 (CAS CATO-C4X-1101105)
- Ibrutinib Impurity 131 (CAS CATO-C4X-1064131)
- Olaparib Impurity 7 (CAS CATO-C4X-11357)
- Tinidazole Impurity 13 (CAS CATO-C4X-193013)
- Bisacodyl Impurity 10 (CAS CATO-C4X-203710)
- Famotidine Impurity 52 (CAS CATO-C4X-139252)
- 4-Bromo-3-(3-chlorophenyl)-2-fluoropropiophenone (CAS 898787-31-0)
- 3-butylthiophene 3-n-Butylthiophene 34722-01-5 (CAS 34722-01-5)
- N-(Benzo[d]thiazol-2-yl)-1-ethyl-4-hydroxy-2-oxo-1,2-dihydroquinoline-3-carboxamide (CAS 300716-43-2)
- 1-(1H-1,3-Benzodiazol-2-ylsulfanyl)-2,3-dihydro-1H-inden-2-ol (CAS 477887-00-6)
- 1-(1-((Tetrahydrofuran-3-yl)methyl)-1H-pyrazol-4-yl)ethan-1-amine (CAS 1343972-10-0)
- 2,4-Dimethoxybenzenesulfonic acid (CAS 7134-13-6)
- Semaglutide impurity 96 (CAS CATO-C4X-222696)
Why CATO?
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- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com