Azilsartan Impurity 21 CAS 136285-67-1
Purity >95%In StockPharmacopoeial Impurity Standards
| CAS No. | 136285-67-1 |
| Molecular Formula | C23H19N3O4 |
| Molecular Weight | 401.41 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Azilsartan Impurity 21 (CAS 136285-67-1) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C23H19N3O4. Molecular weight: 401.41 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C23H19N3O4 |
| Molecular Weight | 401.41 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) | 16.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1995 |
| Nitrogen Atoms | 3 |
Related Azilsartan Standards
- Azilsartan impurity 143 (CAS CATO-C4X-1096143)
- Azilsartan impurity 144 (CAS CATO-C4X-1096144)
- Azilsartan Impurity 18 (CAS 2171316-29-1)
- Azilsartan Impurity 109 (CAS CATO-C4X-1096109)
- Azilsartan Impurity 104 (CAS CATO-C4X-1096104)
- Azilsartan Impurity 185 (CAS CATO-C4X-1096185)
- Azilsartan Impurity 8 (CAS 1821386-21-3)
- Azilsartan impurity 149 (CAS CATO-C4X-1096149)
Recommended Standards
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- Azilsartan Impurity 116 (CAS CATO-C4X-1096116)
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- Neuropeptide Y (3-36) (human, rat) trifluoroacetate salt (CAS 150138-78-6)
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