Oseltamivir Impurity 59 CAS 722-97-4
| CAS No. | 722-97-4 |
| Molecular Formula | C12H16N2O3 |
| Molecular Weight | 236.27 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Oseltamivir Impurity 59 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 59 (CAS 722-97-4, C12H16N2O3) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Oseltamivir Impurity 59 (C12H16N2O3) contains an amino-acid-derived structure, 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.
Physical & Chemical Properties
| Molecular Formula | C12H16N2O3 |
| Molecular Weight | 236.27 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | >95% |
| Storage | Store at 2-8°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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Nitrogen Atoms | 2 |
Related Oseltamivir Standards
- Oseltamivir Impurity 217 (CAS CATO-C4X-1720217)
- Oseltamivir Impurity 92 (CAS 1151665-78-9)
- Oseltamivir Impurity 132 (CAS 162252-43-9)
- Oseltamivir Impurity 172 (CAS CATO-C4X-1720172)
- Oseltamivir Impurity 241 (CAS CATO-C4X-1720241)
- Oseltamivir Impurity 29 (CAS CATO-C4X-172029)
- Oseltamivir Impurity 85 (CAS CATO-C4X-172085)
- Oseltamivir Impurity 89 (CAS 1234858-94-6)
Recommended Standards
- Doxofylline Impurity 20 (CAS 1021-65-4)
- Paliperidone Impurity 160 (CAS CATO-C4X-1724160)
- Telmisartan Impurity 57 (CAS 884330-16-9)
- Lacosamide EP Impurity F (R-isomer) (CAS 175481-38-6)
- Erythromycin EP Impurity C (CAS 41451-91-6)
- Rivaroxaban impurity 191 (CAS CATO-C4X-1090191)
- Finerenone Impurity 260 (CAS 2953382-12-0)
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- Cyproheptadine beta-N-Oxide (CAS 60251-34-5)
- (1R,2S)-2-((tert-butoxycarbonyl)amino)-2-methylcyclohexane-1-carboxylic acid (CAS 1175673-63-8)
- 7-(Chloromethyl)-2-ethyl-5H-[1,3,4]thiadiazolo[3,2-a]pyrimidin-5-one (CAS 869634-07-1)
- Calcium-Like Peptide 3 (CAS 261969-05-5)
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