Oseltamivir Impurity N7 CAS 1376142-56-1
| CAS No. | 1376142-56-1 |
| Molecular Formula | C14H24N2O4 |
| Molecular Weight | 284.35 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Oseltamivir Impurity N7 (C14H24N2O4) contains a nitrogen-containing heterocyclic scaffold, 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).
Oseltamivir Impurity N7 (CAS 1376142-56-1) is a certified pharmaceutical impurity reference standard with the molecular formula C14H24N2O4 and a molecular weight of 284.35 g/mol.
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.
As a certified reference material (CRM), Oseltamivir Impurity N7 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 | C14H24N2O4 |
| Molecular Weight | 284.35 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| 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) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
| Nitrogen Atoms | 2 |
Related Oseltamivir Standards
- Oseltamivir EP Impurity A (CAS 1364932-19-3)
- Oseltamivir EP Impurity C (CAS 187227-45-8)
- Oseltamivir Impurity N42 (CAS 1052063-36-1)
- Oseltamivir impurity 203 (CAS CATO-C4X-1720203)
- Oseltamivir Impurity 153 (CAS CATO-C4X-1720153)
- Oseltamivir EP Impurity C-d3 (CAS CATO-C4X-1720233)
- Oseltamivir-d3 Acid (CAS 1242184-43-5)
- Oseltamivir Acid-13CD3 (CAS 187227-45-8 (unlabeled))
Recommended Standards
- 3-Hydroxy-Desoxydihydro Artemisinin (CAS 126641-61-0)
- Melanocyte-Stimulating Hormone-Release Inhibiting Factor (CAS 2002-44-0)
- 2-(Benzo[d]thiazol-2-yl)benzo[d]isothiazol-3(2H)-one (CAS 100527-13-7)
- Dihydroartemisinin (CAS 71939-50-9)
- Rimegepant Impurity 132 (CAS CATO-C4X-2487132)
- Oxiracetam Impurity 9 (CAS 142274-07-5)
- Azithromycin Impurity 35 (CAS 117693-42-2)
- 4-(4-Chlorophenyl)-3-{[(4-chlorophenyl)methyl]sulfanyl}-5-[(E)-2-phenylethenyl]-4H-1,2,4-triazole (CAS 551920-94-6)
- 3',5-Dimethyl-[3,5'-biisoxazole]-4'-carbonyl chloride (CAS 306936-71-0)
- n-((1h-Benzo[d]imidazol-2-yl)methyl)cyclopropanamine (CAS 920464-32-0)
- 7-Fluorobenzo[d]thiazole-2(3H)-thione (CAS 154327-29-4)
- Apatinib (CAS 811803-05-1)
- N-(2-Oxo-2-((1,2,3,4-tetrahydronaphthalen-1-yl)amino)ethyl)-4-phenoxybenzamide (CAS 850467-77-5)
- Neuropeptide Y (22-36) (CAS 119019-65-7)
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