Azilsartan impurity 149 CAS CATO-C4X-1096149
| CAS No. | CATO-C4X-1096149 |
| Molecular Formula | C23H18N4O3 |
| Molecular Weight | 398.41 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Owing to a steroid core, an amide group, a hydroxyl group, an ether linkage, Azilsartan impurity 149 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 398.41 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
CATO supplies Azilsartan impurity 149 (CAS CATO-C4X-1096149), a pharmacopoeial impurity reference standard (molecular formula C23H18N4O3, MW 398.41 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.
CATO manufactures Azilsartan impurity 149 under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C23H18N4O3 |
| Molecular Weight | 398.41 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°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 16 (CAS 632322-61-3)
- Azilsartan Impurity 4 (CAS 1397836-52-0)
- Azilsartan Impurity 109 (CAS CATO-C4X-1096109)
- Azilsartan impurity 143 (CAS CATO-C4X-1096143)
- Azilsartan impurity 144 (CAS CATO-C4X-1096144)
- Azilsartan Impurity 18 (CAS 2171316-29-1)
- Azilsartan Impurity 21 (CAS 136285-67-1)
- Azilsartan Impurity 104 (CAS CATO-C4X-1096104)
Recommended Standards
- N-(3-fluorophenyl)-2-((5-(furan-2-yl)-4-(furan-2-ylmethyl)-4H-1,2,4-triazol-3-yl)thio)acetamide (CAS 557067-86-4)
- Loxoprofen Impurity 142 (CAS CATO-C4X-1488142)
- N-(2,2-diethoxyethyl)-3-(2-fluoro-4-nitrophenoxy)thiophene-2-carboxamide (CAS 303152-59-2)
- Sivelestat sodium impurity 47 (CAS CATO-C4X-212347)
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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