Oseltamivir Impurity 196 CAS CATO-C4X-1720196
| CAS No. | CATO-C4X-1720196 |
| Molecular Formula | C16H25N7O4 |
| Molecular Weight | 379.41 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Oseltamivir Impurity 196 (CAS CATO-C4X-1720196) is a certified pharmaceutical impurity reference standard with the molecular formula C16H25N7O4 and a molecular weight of 379.41 g/mol.
Based on its molecular formula C16H25N7O4, Oseltamivir Impurity 196 contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 379.41 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C16H25N7O4 |
| Molecular Weight | 379.41 g/mol |
| Appearance | Pale yellow to 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 7 |
Related Oseltamivir Standards
- Oseltamivir Impurity 226 (CAS CATO-C4X-1720226)
- Oseltamivir Impurity 142 (CAS CATO-C4X-1720142)
- Oseltamivir Impurity 175 (CAS CATO-C4X-1720175)
- Oseltamivir impurity 279 (CAS CATO-C4X-1720279)
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- Oseltamivir Impurity 127 (CAS CATO-C4X-1720127)
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Recommended Standards
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- Arotinolol Impurity 68 (CAS CATO-C4X-185468)
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- 8-Methyl-2,3,9,9a-tetrahydro-1H-pyrido[3,4-b]indol-1-one (CAS 14490-04-1)
- 1-Cyclopropyl-2-fluoroethan-1-one (CAS 3794-04-5)
- (1R,2R)-1,2-bis(2-(tert-butyl)phenyl)ethane-1,2-diol (CAS 1041002-44-1)
- Insulin Degludec Impurity 1 (CAS 843666-26-2)
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