Oseltamivir Impurity 13 CAS CATO-C4X-172013
| CAS No. | CATO-C4X-172013 |
| Molecular Formula | C26H44N2O4 |
| Molecular Weight | 448.64 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
Oseltamivir Impurity 13 (CAS CATO-C4X-172013) is a certified pharmaceutical impurity reference standard with the molecular formula C26H44N2O4 and a molecular weight of 448.64 g/mol.
Structurally, Oseltamivir Impurity 13 (C26H44N2O4) contains a steroid core, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 6.0, corresponding to approximately 6 ring(s) or double-bond equivalent(s). With a molecular weight of 448.64 g/mol, it falls into the moderately-high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
As a certified reference material (CRM), Oseltamivir Impurity 13 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C26H44N2O4 |
| Molecular Weight | 448.64 g/mol |
| Appearance | Off-white to pale 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 2 |
Related Oseltamivir Standards
- Oseltamivir Impurity 115 (CAS CATO-C4X-1720115)
- Oseltamivir Impurity 14 (CAS CATO-C4X-172014)
- Oseltamivir Impurity 149 (CAS 651324-07-1)
- Oseltamivir Impurity 24 (CAS CATO-C4X-172024)
- Oseltamivir Impurity 25 (CAS CATO-C4X-172025)
- Oseltamivir Impurity 26 (CAS CATO-C4X-172026)
- Oseltamivir impurity 268 (CAS CATO-C4X-1720268)
- Oseltamivir impurity 278 (CAS CATO-C4X-1720278)
Recommended Standards
- Finasteride Impurity 49 (CAS CATO-C4X-164549)
- Finasteride Impurity 48 (CAS CATO-C4X-164548)
- Loxoprofen impurity 101 (CAS CATO-C4X-1488101)
- Spironolactone EP Impurity D (CAS 3079028-52-4)
- Mirogabalin Impurity 53 (CAS CATO-C4X-292453)
- Salcaprozate Impurity 4 (CAS CATO-C4X-25074)
- Eltrombopag Impurity 75 (CAS CATO-C4X-119875)
- Corylifol A (CAS 775351-88-7)
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- 5-[2-(Trifluoromethoxy)phenyl]-2-furancarboxylic Acid (CAS 424817-26-5)
- N-((3-Cyclopropyl-1-isopropyl-1H-pyrazol-5-yl)methyl)-1-propyl-1H-pyrazol-4-amine hydrochloride (CAS 1856031-88-3)
- 2-Cyclopropyl-1H-imidazole-5-carboxylic acid (CAS 1247167-29-8)
- 3-(5-Hydroxy-1,2,4-oxadiazol-3-yl)benzoic acid (CAS 1206894-79-2)
- Peptide Impurity 82 (CAS 10491-78-8)
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