Oseltamivir Impurity 22 CAS CATO-C4X-172022
| CAS No. | CATO-C4X-172022 |
| Molecular Formula | C22H38N2O9 |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
As a process- or degradation-related impurity, Oseltamivir Impurity 22 (CAS CATO-C4X-172022, C22H38N2O9HCl) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Based on its molecular formula C22H38N2O9HCl, Oseltamivir Impurity 22 contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 511.01 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
As a certified reference material (CRM), Oseltamivir Impurity 22 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 | C22H38N2O9 HCl |
| Molecular Weight | 511.01 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | >90% |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Oseltamivir Standards
- Oseltamivir Impurity 133 (CAS 10098-40-5)
- Oseltamivir impurity 265 Phosphate (CAS 1035895-88-5)
- Ent-Oseltamivir HCl (CAS 1035895-88-5(Free Base))
- Ent-Oseltamivir Phosphate (CAS 1035895-89-6)
- Oseltamivir Impurity N42 (CAS 1052063-36-1)
- Oseltamivir EP Impurity F HCl（Mixture of Diastereomers） (CAS 1052063-37-2（free base）)
- Oseltamivir-d3 (CAS 1093851-61-6)
- Oseltamivir Hydrochloride D3 (CAS 1093851-61-6(free base))
Recommended Standards
- Linagliptin Impurity 62 (CAS 1807608-59-8)
- Brivaracetam Impurity 195 (CAS CATO-C4X-2007195)
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- Ledipasvir D6 (CAS 2050041-12-6)
- N-(2-Fluorophenyl)-2-(4-(5-(furan-2-yl)-1,3,4-thiadiazol-2-yl)piperidin-1-yl)acetamide (CAS 1226456-53-6)
- 3-(1-(3-Methoxyphenyl)-2,5-dimethyl-1h-pyrrol-3-yl)acrylic acid (CAS 924865-94-1)
- Isothiazole-3-carboxylic acid (CAS 4576-90-3)
- (2E,4E)-Methyl 6-bromohexa-2,4-dienoate (CAS 51010-88-9)
- 2-(2-Nitroethyl)-N'-(pyridin-2-yl)benzohydrazide (CAS 338410-34-7)
- (D-Ala2)-Gastric Inhibitory Polypeptide (human) trifluoroacetate salt (CAS 444073-04-5)
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