Oseltamivir Impurity 246 CAS CATO-C4X-1720246
| CAS No. | CATO-C4X-1720246 |
| Molecular Formula | C16H26N4O4 |
| Molecular Weight | 338.40 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 338.40 g/mol gives Oseltamivir Impurity 246 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies Oseltamivir Impurity 246 (CAS CATO-C4X-1720246), a pharmacopoeial impurity reference standard (molecular formula C16H26N4O4, MW 338.40 g/mol) used for the identification and quantification of trace impurities in APIs.
Oseltamivir Impurity 246 (C16H26N4O4) 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).
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 246 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 | C16H26N4O4 |
| Molecular Weight | 338.40 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 |
| Nitrogen Atoms | 4 |
Related Oseltamivir Standards
- Oseltamivir Impurity 162 (CAS CATO-C4X-1720162)
- Oseltamivir Impurity 176 (CAS CATO-C4X-1720176)
- Oseltamivir Impurity 136 (CAS CATO-C4X-1720136)
- Oseltamivir impurity 205 (CAS CATO-C4X-1720205)
- Oseltamivir Impurity 243 (CAS CATO-C4X-1720243)
- Oseltamivir Impurity 238 (CAS 949164-64-1)
- Oseltamivir Impurity 135 (CAS CATO-C4X-1720135)
- Oseltamivir Impurity 197 (CAS CATO-C4X-1720197)
Recommended Standards
- Warfarin impurity 13 (CAS CATO-C4X-17813)
- Flurbiprofen Impurity 159 (CAS 179766-28-0)
- Trimetazidine EP Impurity H (CAS 53531-01-4)
- Warfarin Impurity 12 (CAS CATO-C4X-142912)
- Metoclopramide Impurity 17 (CAS CATO-C4X-141517)
- Moxifloxacin Impurity 57 (CAS CATO-C4X-107457)
- Roxadustat Impurity 46 (CAS CATO-C4X-221346)
- 4-[(2-Chloro-1,3-thiazol-5-yl)methoxy]-N-cyclopropylbenzene-1-sulfonamide (CAS 860649-02-1)
- Iohexol Impurity 26 (CAS CATO-C4X-166426)
- 2-(2,2-Dimethyltetrahydro-2H-pyran-4-yl)ethan-1-amine hydrochloride (CAS 1021920-27-3)
- 5-methoxypyridine-2-carbothioamide (CAS 1256809-16-1)
- Mavacoxib Impurity 9 (CAS CATO-C4X-30599)
- 1-Octene (CAS 111-66-0)
- Angiotensin II Antipeptide (CAS 121379-63-3)
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