Oseltamivir Impurity 90 CAS CATO-C4X-172090
| CAS No. | CATO-C4X-172090 |
| Molecular Formula | C14H23ClO4 |
| Molecular Weight | 290.78 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Oseltamivir Impurity 90 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.
Oseltamivir Impurity 90 (CAS CATO-C4X-172090) is a certified pharmaceutical impurity reference standard with the molecular formula C14H23ClO4 and a molecular weight of 290.78 g/mol.
Oseltamivir Impurity 90 (C14H23ClO4) contains a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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.
Physical & Chemical Properties
| Molecular Formula | C14H23ClO4 |
| Molecular Weight | 290.78 g/mol |
| Purity | >95% |
| Storage | Store in a cool place (≤25°C), keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| Halogen Content | Cl-containing |
Related Oseltamivir Standards
- Oseltamivir Impurity 124 (CAS CATO-C4X-1720124)
- Oseltamivir impurity 266 (CAS 2762080-42-0)
- Oseltamivir Impurity 93 (CAS CATO-C4X-172093)
- Oseltamivir Acid-13CD3 (CAS 187227-45-8 (unlabeled))
- Oseltamivir EP Impurity C-d3 (CAS CATO-C4X-1720233)
- Oseltamivir-d3 Acid (CAS 1242184-43-5)
- Oseltamivir impurity N1 (CAS 1268086-96-9)
- Oseltamivir Impurity 138 (CAS CATO-C4X-1720138)
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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