Oseltamivir impurity 265 Phosphate CAS 1035895-88-5
| CAS No. | 1035895-88-5 |
| Molecular Formula | C16H28N2O4 |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| 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 Oseltamivir impurity 265 Phosphate.
Oseltamivir impurity 265 Phosphate (CAS 1035895-88-5) is a certified pharmaceutical impurity reference standard with the molecular formula C16H28N2O4H3O4P and a molecular weight of 410.40 g/mol.
Oseltamivir impurity 265 Phosphate (C16H28N2O4H3O4P) contains an amide group, a phosphate ester group, a carboxylic acid group, a hydroxyl group, an ether linkage. It is notably hygroscopic, 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 impurity 265 Phosphate 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 H3O4P |
| Molecular Weight | 410.40 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 2.5 |
| CAS Registry Year (est.) | 1988 |
| Nitrogen Atoms | 2 |
Related Oseltamivir Standards
- Oseltamivir Impurity 133 (CAS 10098-40-5)
- 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))
- Oseltamivir Impurity 23 (CAS 1132659-94-9)
Recommended Standards
- Argatroban Impurity 88 (CAS CATO-C4X-100788)
- Crisaborole Impurity 145 (CAS CATO-C4X-2021145)
- Irbesartan Impurity N5 (CAS 52-52-8)
- Biotinyl-εAhx-Amyloid β-Protein (1-40) trifluoroacetate salt (CAS 1802086-72-1)
- N-(Benzo[d]thiazol-2-yl)-N-(2-(3,5-dimethyl-1H-pyrazol-1-yl)ethyl)acetamide (CAS 1171705-53-5)
- N-(2,4-Dimethoxybenzyl)cyclopropanamine (CAS 880812-90-8)
- Tranexamic Impurity 27 (CAS CATO-C4X-177127)
- Benzyl (5-iodothiazol-4-yl)carbamate (CAS 1934577-47-5)
- (S)-2-Fluoro-1-phenylethanol (CAS 110229-74-8)
- Tau Peptide (244-274) (Repeat 1 Domain) trifluoroacetate salt (CAS 330456-24-1)
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