Oseltamivir Impurity 46 CAS CATO-C4X-172046
| CAS No. | CATO-C4X-172046 |
| Molecular Formula | C16H28N2O4 |
| Molecular Weight | N/A |
| 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.
CATO supplies Oseltamivir Impurity 46 (CAS CATO-C4X-172046), a pharmacopoeial impurity reference standard (molecular formula C16H28N2O4HCl, MW 348.87 g/mol) used for the identification and quantification of trace impurities in APIs.
Based on its molecular formula C16H28N2O4HCl, Oseltamivir Impurity 46 contains an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 348.87 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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.
Physical & Chemical Properties
| Molecular Formula | C16H28N2O4 HCl |
| Molecular Weight | 348.87 g/mol |
| Appearance | White to pale yellow crystalline powder. (slight halide-like odor) |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| 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
- Agomelatine Impurity 27 (CAS CATO-C4X-110827)
- Vonoprazan Impurity 197 (CAS CATO-C4X-1020197)
- Nicorandil Impurity 28 (CAS CATO-C4X-190728)
- 6-Morpholinonicotinamide (CAS 56501-17-8)
- 2,5-dichloropyrido[3,4-b]pyrazine (CAS 1600511-80-5)
- 4-Hydroxy-5,6,7,8-tetrahydro-1,7-naphthyridin-2(1H)-one (CAS 1935331-03-5)
- rel-Dimethyl ((1R,2R)-2-ethylcyclopentyl)boronate (CAS 60134-95-4)
- 2-Desmethylene-2-hydroxymethyl Ethacrynic Acid Potassium Salt (CAS 95772-54-6)
- Vazegepant Impurity 24 (CAS 2935939-83-4)
- Insulin Glargine (CAS 160337-95-1)
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