Irbesartan Impurity 4 CAS CATO-C4X-16664
| CAS No. | CATO-C4X-16664 |
| Molecular Formula | C25H30N6O2 |
| Molecular Weight | 446.54 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Irbesartan Impurity 4 (CAS CATO-C4X-16664) is a certified pharmaceutical impurity reference standard with the molecular formula C25H30N6O2 and a molecular weight of 446.54 g/mol.
Irbesartan Impurity 4 (C25H30N6O2) 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 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 Irbesartan Impurity 4 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 | C25H30N6O2 |
| Molecular Weight | 446.54 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) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 6 |
Related Irbesartan Standards
- Irbesartan EP Impurity A (CAS 748812-53-5)
- Irbesartan Impurity 13 (CAS CATO-C4X-166613)
- Irbesartan Impurity 34 (CAS CATO-C4X-166634)
- Irbesartan Impurity 20 (CAS 906474-58-6)
- Irbesartan-D9 (CAS 1242281-36-2)
- Irbesartan-d7 (CAS 1329496-43-6)
- Irbesartan Impurity 15 (CAS CATO-C4X-166615)
- Irbesartan Impurity 16 (CAS CATO-C4X-166616)
Recommended Standards
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- 1-{[(3-chloro-4-methoxyphenyl)methyl]sulfanyl}ethan-1-one (CAS 1803586-17-5)
- Semaglutide Impurity 131 (CAS 2618647-80-4)
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