Azilsartan Impurity 136 CAS CATO-C4X-1096136
| CAS No. | CATO-C4X-1096136 |
| Molecular Formula | C26H25N3O4 |
| Molecular Weight | 443.49 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 443.49 g/mol gives Azilsartan Impurity 136 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies Azilsartan Impurity 136 (CAS CATO-C4X-1096136), a pharmacopoeial impurity reference standard (molecular formula C26H25N3O4, MW 443.49 g/mol) used for the identification and quantification of trace impurities in APIs.
Azilsartan Impurity 136 (C26H25N3O4) contains a steroid core, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.
CATO manufactures Azilsartan Impurity 136 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 | C26H25N3O4 |
| Molecular Weight | 443.49 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| 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) | 16.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 3 |
Related Azilsartan Standards
- Azilsartan Impurity 1 (CAS 1586011-04-2)
- Azilsartan Impurity 2 (CAS 147403-65-4)
- Azilsartan Impurity 161 (CAS CATO-C4X-1096161)
- Azilsartan Impurity 85 (CAS 2133408-92-9)
- Azilsartan Impurity 105 (CAS 147403-35-8)
- Azilsartan Impurity 13 (CAS 1403474-78-1)
- Azilsartan impurity 140 (CAS CATO-C4X-1096140)
- Azilsartan Impurity 187 (CAS CATO-C4X-1096187)
Recommended Standards
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- 1-(4-(Hept-1-yn-1-yl)phenyl)ethanone (CAS 627885-32-9)
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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