Azilsartan Ethyl Ester Impurity CAS 1403474-70-3
| CAS No. | 1403474-70-3 |
| Molecular Formula | C27H24N4O5 |
| Molecular Weight | 484.50 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C27H24N4O5, Azilsartan Ethyl Ester Impurity 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 484.50 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).
CATO supplies Azilsartan Ethyl Ester Impurity (CAS 1403474-70-3), a pharmacopoeial impurity reference standard (molecular formula C27H24N4O5, MW 484.50 g/mol) used for the identification and quantification of trace impurities in APIs.
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 | C27H24N4O5 |
| Molecular Weight | 484.50 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) | 18.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
| Nitrogen Atoms | 4 |
Related Azilsartan Standards
- Azilsartan Impurity 39 (CAS CATO-C4X-109639)
- Azilsartan Impurity 87 (CAS CATO-C4X-109687)
- Azilsartan Impurity 51 (CAS 139481-38-2)
- Azilsartan Impurity 94 (CAS 2839197-75-8)
- Azilsartan Impurity 120 (CAS CATO-C4X-1096120)
- Azilsartan Impurity 119 (CAS CATO-C4X-1096119)
- Azilsartan-d5 Methyl Ester (CAS 1794766-42-9)
- Azilsartan Impurity 110 (CAS CATO-C4X-1096110)
Recommended Standards
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- Cefaclor Impurity 33 (CAS CATO-C4X-127033)
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- [8-ethyl-7-fluoro-3-(methoxymethoxy)-1-naphthyl] 2,2-dimethylpropanoate (CAS 2621932-45-2)
- tert-Butyl 3-{[(2-methoxyphenyl)methyl]amino}propanoate (CAS 1221346-18-4)
- 1-[(Propylamino)methyl]naphthalen-2-ol hydrochloride (CAS 256342-22-0)
- Peptide Impurity 40 (CAS CATO-CPTD788840)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com