Oseltamivir Impurity 239 CAS CATO-C4X-1720239
| CAS No. | CATO-C4X-1720239 |
| Molecular Formula | C14H22O4 |
| Molecular Weight | 254.32 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Oseltamivir Impurity 239 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.
As a process- or degradation-related impurity, Oseltamivir Impurity 239 (CAS CATO-C4X-1720239, C14H22O4) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Based on its molecular formula C14H22O4, Oseltamivir Impurity 239 contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 254.32 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
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 | C14H22O4 |
| Molecular Weight | 254.32 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | >95% |
| Storage | Store in a cool place (≤25°C), keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
Related Oseltamivir Standards
- Oseltamivir Impurity C62 (CAS 1217834-81-5)
- Oseltamivir Impurity 145 (CAS 2714884-77-0)
- Oseltamivir Impurity 220 (CAS CATO-C4X-1720220)
- Oseltamivir Impurity 61 (CAS 2413185-89-2)
- Oseltamivir Impurity 63 (CAS 1266663-89-1)
- Oseltamivir Impurity 64 (CAS 2413185-88-1)
- Oseltamivir Intermediate 8 (CAS 204254-96-6)
- Oseltamivir Impurity 164 (CAS 204255-02-7)
Recommended Standards
- Valproate Impurity 85 (CAS CATO-C4X-116685)
- Empagliflozin Impurity 164 (CAS CATO-C4X-1065164)
- Bicalutamide Impurity 22 (CAS 405-31-2)
- Ebastine Impurity 22 (CAS CATO-C4X-202922)
- Clindamycin phosphate ester EP impurity F isomer (CAS 1149764-21-5)
- Fudosteine Impurity 28 (CAS CATO-C4X-144728)
- Osimertinib Impurity 20 (CAS 2044702-65-8)
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- 5-Methyl-1H-indazol-3-amine (CAS 88805-94-1)
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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