Azilsartan Impurity 85 CAS 2133408-92-9
| CAS No. | 2133408-92-9 |
| Molecular Formula | C25H24N4O4 |
| Molecular Weight | 444.48 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Azilsartan Impurity 85 is closely related to a flavonoid core, an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
Azilsartan Impurity 85 (CAS 2133408-92-9) is a certified pharmaceutical impurity reference standard with the molecular formula C25H24N4O4 and a molecular weight of 444.48 g/mol.
Structurally, Azilsartan Impurity 85 (C25H24N4O4) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 16.0, corresponding to approximately 16 ring(s) or double-bond equivalent(s). With a molecular weight of 444.48 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).
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 85 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 | C25H24N4O4 |
| Molecular Weight | 444.48 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.) | 1997 |
| Nitrogen Atoms | 4 |
Related Azilsartan Standards
- Azilsartan Impurity 2 (CAS 147403-65-4)
- Azilsartan Impurity 161 (CAS CATO-C4X-1096161)
- Azilsartan Impurity 1 (CAS 1586011-04-2)
- Azilsartan Impurity 136 (CAS CATO-C4X-1096136)
- Azilsartan impurity 140 (CAS CATO-C4X-1096140)
- Azilsartan Impurity 117 (CAS CATO-C4X-1096117)
- Azilsartan Impurity 105 (CAS 147403-35-8)
- Azilsartan Impurity 13 (CAS 1403474-78-1)
Recommended Standards
- Rosuvastatin Impurity 162 (CAS 488798-40-9)
- Mitoxantrone (CAS 65271-80-9)
- Candesartan Cilexetil EP Impurity G-d4 (CAS 1346604-70-3)
- Advantame Acid Impurity (CAS CATO-C3D-262581)
- Amiodarone Impurity 22 (CAS CATO-C4X-142522)
- Cephalexin Impurity 39 (CAS CATO-C4X-126139)
- Ziprasidone Impurity 24 (CAS 884305-07-1)
- 3-Mesityl-5-phenyl-4,5-dihydroisoxazole (CAS 19505-59-0)
- (2-Cyclopropylphenyl)methanamine hydrochloride (CAS 118184-64-8)
- Mupirocin Impurity 23 (CAS CATO-C4X-170623)
- 5-Chloro-quinoline-4-carboxylic acid (CAS 62482-32-0)
- 4-Hydroxy-2-(3-oxopiperazin-1-yl)pyrimidine-5-carboxylic acid (CAS 1355189-53-5)
- 2-Phenyl-3-(phenylamino)quinazolin-4(3H)-one (CAS 37895-88-8)
- Acetyl tetrapeptide-3 (CAS 827306-88-7)
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