Oseltamivir Impurity C62 CAS 1217834-81-5
| CAS No. | 1217834-81-5 |
| Molecular Formula | C14H22O4 |
| Molecular Weight | 254.32 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Oseltamivir Impurity C62 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.
As a process- or degradation-related impurity, Oseltamivir Impurity C62 (CAS 1217834-81-5, C14H22O4) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
The molecular framework of Oseltamivir Impurity C62 (C14H22O4) is characterized by a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C14H22O4 |
| Molecular Weight | 254.32 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| 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 |
| CAS Registry Year (est.) | 1990 |
Related Oseltamivir Standards
- Oseltamivir Impurity 145 (CAS 2714884-77-0)
- Oseltamivir Impurity 220 (CAS CATO-C4X-1720220)
- Oseltamivir Impurity 239 (CAS CATO-C4X-1720239)
- 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
- 85-57-4 U7255OO1G6 2-(4-Hydroxybenzoyl)benzoic acid Benzoic acid, o-(p-hydroxybenzoyl)- Benzoic acid, 2-(4-hydroxybenzoyl)- (9CI) Benzoic acid, 2-(4-hydroxybenzoyl)- 3-10-00-04429 (Beilstein Handbook Reference) AI3-22141 Benzoic acid, p-(p-hydroxybenzoyl)- BRN 2116114 EINECS 201-616-4 Hybenzoate o-(p-Hydroxybenzoyl)benzoic acid NSC 122980 Phthalein acid UNII-U7255OO1G6 (CAS 85-57-4)
- Bicalutamide Impurity 22 (CAS 405-31-2)
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- Empagliflozin Impurity 164 (CAS CATO-C4X-1065164)
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