Oseltamivir Impurity 244 CAS CATO-C4X-1720244
| CAS No. | CATO-C4X-1720244 |
| Molecular Formula | C16H29NO4 |
| Molecular Weight | 299.41 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies Oseltamivir Impurity 244 (CAS CATO-C4X-1720244), a pharmacopoeial impurity reference standard (molecular formula C16H29NO4, MW 299.41 g/mol) used for the identification and quantification of trace impurities in APIs.
Based on its molecular formula C16H29NO4, Oseltamivir Impurity 244 contains an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 299.41 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
CATO manufactures Oseltamivir Impurity 244 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 | C16H29NO4 |
| Molecular Weight | 299.41 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 |
| Nitrogen Atoms | 1 |
Related Oseltamivir Standards
- Oseltamivir Impurity 123 (CAS CATO-C4X-1720123)
- Oseltamivir EP Impurity E (CAS 208720-71-2)
- Oseltamivir Impurity 166 (CAS 204254-98-8)
- Oseltamivir Impurity 163 (CAS CATO-C4X-1720163)
- Oseltamivir Impurity 138 (CAS CATO-C4X-1720138)
- Oseltamivir impurity N1 (CAS 1268086-96-9)
- Oseltamivir Impurity 93 (CAS CATO-C4X-172093)
- Oseltamivir Impurity 124 (CAS CATO-C4X-1720124)
Recommended Standards
- Fluoxetine Impurity 24 (CAS CATO-C4X-135224)
- Exemestane-d3 (CAS 107868-30-4 (unlabelled))
- Etoricoxib impurity 67 (CAS 859824-65-0)
- N-(2,5-Dimethylphenyl)-1-(thiophen-2-yl)cyclopentane-1-carboxamide (CAS 1049526-66-0)
- Lidocaine impurity 64 (CAS 64585-19-9)
- Metoclopramide Impurity 15 (CAS CATO-C4X-141515)
- Tranexamic Acid EP Impurity C (CAS 330838-52-3)
- N-(3-Acetylphenyl)-[1,1'-biphenyl]-4-carboxamide (CAS 316138-75-7)
- 2-Methyl-1-(2-nitrophenyl)piperazine (CAS 1240574-14-4)
- 4-(2-Fluorophenyl)dihydro-2h-pyran-2,6(3h)-dione (CAS 1267275-37-5)
- Ethyl 2-(piperidin-1-yl)benzoate (CAS 192817-76-8)
- N-((1,5-dimethyl-1H-pyrazol-4-yl)methyl)thietan-3-amine (CAS 1872565-75-7)
- tert-butyl (4R)-4-methyl-2,2-dioxo-oxathiazinane-3-carboxylate (CAS 2422150-99-8)
- Semaglutide impurity 244(Fmoc-His(Fmoc)-Aib-OH) (CAS CATO-C4X-2226244)
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