Ent-Oseltamivir HCl CAS 1035895-88-5(Free Base)
| CAS No. | 1035895-88-5(Free Base) |
| Molecular Formula | C16H28N2O4 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Ent-Oseltamivir HCl.
Ent-Oseltamivir HCl (CAS 1035895-88-5(Free Base)), molecular formula C16H28N2O4HCl and molecular weight 348.87 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, Ent-Oseltamivir HCl (C16H28N2O4HCl) contains an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution. 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 348.87 g/mol, it falls into the moderately-high-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures Ent-Oseltamivir 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 | 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 Ent Standards
- Oseltamivir Impurity 133 (CAS 10098-40-5)
- Oseltamivir impurity 265 Phosphate (CAS 1035895-88-5)
- 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))
- Oseltamivir Impurity 23 (CAS 1132659-94-9)
Recommended Standards
- (S)-Methyl 2-amino-2-(cyclohexa-1,4-dien-1-yl)acetate HCl (CAS 55355-44-7)
- 8-Fluoro-4-hydroxy-2-(trifluoromethyl)quinoline (CAS 31009-31-1)
- 2-bromopyrimidine-4-carbonitrile (CAS 1209459-16-4)
- 1,7-Diazaspiro[4.4]nonan-6-one hydrochloride (CAS 1203682-72-7)
- 2-(Piperidin-1-yl)-1,3-thiazol-4-amine hydrochloride (CAS 170492-31-6)
- N-(4-iodophenyl)propane-1-sulfonamide (CAS 1250081-63-0)
- 3-[(2-Ethoxy-3,4-dioxocyclobutyl)amino]-2-hydroxy-N,N-dimethylbenzamide (CAS 464913-33-5)
- 2-Bromo-6-chloro-4-(trifluoromethyl)benzoic acid (CAS 1956322-96-5)
- 1-Methoxychrysene (CAS 63020-57-5)
- [Formaldehyde Schiff-base]-Semaglutide Impurity 136 X TFA Salt (CAS CATO-C4X-2226136)
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