Oseltamivir Impurity 152 CAS 651324-04-8
| CAS No. | 651324-04-8 |
| Molecular Formula | C18H33NO4 |
| Molecular Weight | 327.46 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
Oseltamivir Impurity 152 (CAS 651324-04-8) is a certified pharmaceutical impurity reference standard with the molecular formula C18H33NO4 and a molecular weight of 327.46 g/mol.
Structurally, Oseltamivir Impurity 152 (C18H33NO4) contains an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 3.0, corresponding to approximately 3 ring(s) or double-bond equivalent(s). With a molecular weight of 327.46 g/mol, it falls into the moderately-high-molecular-weight range. 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.
Physical & Chemical Properties
| Molecular Formula | C18H33NO4 |
| Molecular Weight | 327.46 g/mol |
| Appearance | 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 methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1985 |
| Nitrogen Atoms | 1 |
Related Oseltamivir Standards
- Oseltamivir Impurity 55 (CAS 2730003-43-5)
- Oseltamivir Impurity 56 (CAS CATO-C4X-172056)
- Oseltamivir Impurity 94 (CAS CATO-C4X-172094)
- Oseltamivir Impurity 116 (CAS 2516234-45-8)
- Oseltamivir Impurity 240 (CAS CATO-C4X-1720240)
- Oseltamivir Impurity 185 (CAS CATO-C4X-1720185)
- Oseltamivir Impurity 37 (CAS CATO-C4X-172037)
- Oseltamivir Impurity 113 (CAS CATO-C4X-1720113)
Recommended Standards
- CAS CATO-C3D-262834 (CAS CATO-C3D-262834)
- UR-144 5-Hydroxypentyl metabolite (CAS 895155-95-0)
- trans-Dichlorobis(glycine)palladium (CAS 79351-56-7)
- Tert-butyl 4-(((2-morpholinoethyl)amino)methyl)piperidine-1-carboxylate (CAS 887583-43-9)
- Pethidine impurity 9 (CAS CATO-C4X-22329)
- Desloratadine Impurity 51 (CAS CATO-C4X-143051)
- Ixazomib Impurity 50 (CAS 220315-20-8)
- 2-Ethoxy-6-methyl-5-nitropyrimidin-4(3H)-one (CAS 917596-58-8)
- 3-(4-Chlorophenyl)-5-trifluoromethylbenzoic acid (CAS 1261964-03-7)
- 1-(3-Fluoro-4-(methylsulfonyl)phenyl)ethan-1-amine (CAS 1354951-90-8)
- (R)-2-(1-Boc-2-pyrrolidinyl)acetic Acid (CAS 101555-60-6)
- (R)-2,2,2-trifluoro-1-(3-fluoro-5-methoxyphenyl)ethan-1-amine (CAS 1213656-49-5)
- N-Benzyl-3-((4-methoxy-N-methylphenyl)sulfonamido)thiophene-2-carboxamide (CAS 1115933-57-7)
- Semaglutide impurity 37 (CAS CATO-C4X-222637)
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