Azilsartan Impurity 55 CAS 1883681-10-4
| CAS No. | 1883681-10-4 |
| Molecular Formula | C29H26N4O7 |
| Molecular Weight | 542.54 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
Azilsartan Impurity 55 (CAS 1883681-10-4) is a certified pharmaceutical impurity reference standard with the molecular formula C29H26N4O7 and a molecular weight of 542.54 g/mol.
Structurally, Azilsartan Impurity 55 (C29H26N4O7) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 19.0, corresponding to approximately 19 ring(s) or double-bond equivalent(s). With a molecular weight of 542.54 g/mol, it falls into the moderately-high-molecular-weight range. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
As a certified reference material (CRM), Azilsartan Impurity 55 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.
Physical & Chemical Properties
| Molecular Formula | C29H26N4O7 |
| Molecular Weight | 542.54 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) | 19.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1995 |
| Nitrogen Atoms | 4 |
Related Azilsartan Standards
- Azilsartan Impurity 100 (CAS CATO-C4X-1096100)
- Azilsartan Impurity 52 (CAS 1449029-77-9)
- Azilsartan Impurity 57 (CAS 3031851-96-1)
- Azilsartan Impurity 162 (CAS CATO-C4X-1096162)
- Azilsartan Impurity 33 (CAS 1417576-00-1)
- Azilsartan Impurity 183 (CAS CATO-C4X-1096183)
- Azilsartan impurity 147 (CAS CATO-C4X-1096147)
- Azilsartan Impurity 138 (CAS CATO-C4X-1096138)
Recommended Standards
- Olmesartan Impurity 55 (CAS 1227626-44-9)
- Fmoc-D-Aph(Hor)-OH (CAS 2209043-45-6)
- Olmesartan Impurity 56 (CAS 2347585-74-2)
- (2S,5R)-tert-Butyl 2,5-dimethyl-4-(4-((perfluorophenoxy)carbonyl)-2-propylphenyl)piperazine-1-carboxylate (CAS 1666111-64-3)
- Rivaroxaban Impurity 97 (CAS 2288308-42-7)
- Dotinurad Impurity 242 (CAS CATO-C4X-2494242)
- Quetiapine Impurity 51 (CAS 1185170-04-0)
- (S)-2-((S)-2-Aminopropanamido)-3-methylbutanoic acid 2,2,2-trifluoroacetate (CAS 76615-36-6)
- (2S,4S)-1-(tert-Butoxycarbonyl)-4-[2-(ethoxy-carbonyl)phenoxy]-2-pyrrolidinecarboxylic acid (CAS 1354486-39-7)
- 9-Mercapto-1-nonanol (CAS 131215-92-4)
- N-Methyl-3-nitrobenzenesulfonamide (CAS 58955-78-5)
- Amylin (14-20) (human) (CAS 121341-77-3)
- n-Methyl-1-(5-(trifluoromethyl)pyridin-2-yl)methanamine hydrochloride (CAS 2490698-33-2)
- Semaglutide impurity 286 (CAS CATO-C4X-2226286)
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