Oseltamivir EP Impurity E（HCl） CAS 208720-71-2(free base)
| CAS No. | 208720-71-2(free base) |
| Molecular Formula | C15H26N2O4 |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Oseltamivir EP Impurity E（HCl） is closely related to an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
As a process- or degradation-related impurity, Oseltamivir EP Impurity E（HCl） (CAS 208720-71-2(free base), C15H26N2O4HCl) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Oseltamivir EP Impurity E（HCl） (C15H26N2O4HCl) contains an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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.
CATO manufactures Oseltamivir EP Impurity E（HCl） under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C15H26N2O4 HCl |
| Molecular Weight | 334.84 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
- Lusutrombopag Impurity 55 (CAS CATO-C4X-208455)
- Lodoxamide lmpurity 15 (CAS 67605-91-8)
- Lenvatinib Impurity 43 (CAS 1882873-21-3)
- 5-Acetyl-2-(diphenylamino)-5-methylthiazol-4(5H)-one (CAS 40994-90-9)
- 2-(difluoro(3,4,5-trifluorophenoxy)methyl)-1,3-difluoro-5-((1s,4r)-4-propylcyclohexyl)benzene (CAS 208338-62-9)
- Dorzolamide EP Impurity B（R,S-Isomer) (CAS 149249-72-9)
- (S)-2-((tert-Butoxycarbonyl)amino)-3-((1,1,1-trifluoro-2-methylpropan-2-yl)oxy)propanoic acid (CAS 2735655-02-2)
- 4-Chloro-N-(2,6-dichlorophenyl)benzamide (CAS 200807-46-1)
- tert-Butyl (R)-(1-(2-bromo-5-chlorophenyl)ethyl)(tert-butoxycarbonyl)carbamate (CAS 1933460-45-7)
- HIV (gp120) Antigenic Peptide (H-2982.0500) (CAS 198636-94-1)
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