Azilsartan Impurity 167 CAS CATO-C4X-1096167
| CAS No. | CATO-C4X-1096167 |
| Molecular Formula | C26H23N3O2 |
| Molecular Weight | 409.48 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Azilsartan Impurity 167 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.
As a process- or degradation-related impurity, Azilsartan Impurity 167 (CAS CATO-C4X-1096167, C26H23N3O2) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Structurally, Azilsartan Impurity 167 (C26H23N3O2) contains a steroid core, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 17.0, corresponding to approximately 17 ring(s) or double-bond equivalent(s). With a molecular weight of 409.48 g/mol, it falls into the moderately-high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
Physical & Chemical Properties
| Molecular Formula | C26H23N3O2 |
| Molecular Weight | 409.48 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) | 17.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 3 |
Related Azilsartan Standards
- Azilsartan Impurity 27 (CAS 139481-44-0)
- Azilsartan Impurity 101 (CAS 1857365-17-3)
- Azilsartan Impurity 181 (CAS CATO-C4X-1096181)
- Azilsartan Impurity 38 (CAS 1225044-11-0)
- Azilsartan Impurity 128 (CAS CATO-C4X-1096128)
- Azilsartan Impurity 15 (CAS 1442400-65-8)
- Azilsartan Impurity 11 (CAS CATO-C4X-109611)
- Azilsartan Impurity 22 (CAS CATO-C4X-109622)
Recommended Standards
- 1-((6,8-dimethyl-2-oxo-1,2-dihydroquinolin-3-yl)methyl)-3-(4-ethoxyphenyl)-1-(2-hydroxyethyl)urea (CAS 2298375-51-4)
- Lafutidine impurity 23 (CAS CATO-C4X-147623)
- CAS 2414593-71-6 (CAS 2414593-71-6)
- Thiamine /Vitamin B1 Impurity 48 (CAS CATO-C4X-187348)
- Zopiclone Impurity 15 (CAS 4180-30-7)
- Clevidipine Impurity 24-13C-d3 (CAS CATO-C4X-101524)
- relugolix Impurity 93 (CAS CATO-C4X-242993)
- 7-Bromo-4,5-difluoro-3-hydroxyindoline (CAS 1707374-08-0)
- Methyl 4-(4-acetamidophenyl)-3-methyl-4-oxobutanoate (CAS 120757-17-7)
- Tetrahydro-2h-thiopyran-3-sulfonamide 1,1-dioxide (CAS 1341867-72-8)
- (E)-1-(1-(3-chloro-5-(trifluoromethyl)pyridin-2-yl)-2-methyl-1H-imidazol-4-yl)-3-(dimethylamino)prop-2-en-1-one (CAS 250714-15-9)
- N-Boc-3-(4-Pyridyl)-2-propyn-1-amine (CAS 777856-67-4)
- Methyl 2'-chloro-[1,1'-biphenyl]-4-carboxylate (CAS 89900-96-9)
- Insulin Degludec Impurity 15 (CAS CATO-C4X-215715)
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