Oseltamivir Impurity 29 CAS CATO-C4X-172029
| CAS No. | CATO-C4X-172029 |
| Molecular Formula | C13H20O4 |
| Molecular Weight | 240.30 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Oseltamivir Impurity 29 is closely related to a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
As a process- or degradation-related impurity, Oseltamivir Impurity 29 (CAS CATO-C4X-172029, C13H20O4) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Based on its molecular formula C13H20O4, Oseltamivir Impurity 29 contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 240.30 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).
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.
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.
Physical & Chemical Properties
| Molecular Formula | C13H20O4 |
| Molecular Weight | 240.30 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
Related Oseltamivir Standards
- Oseltamivir Impurity 241 (CAS CATO-C4X-1720241)
- Oseltamivir Impurity 85 (CAS CATO-C4X-172085)
- Oseltamivir Impurity 89 (CAS 1234858-94-6)
- Oseltamivir Impurity 172 (CAS CATO-C4X-1720172)
- Oseltamivir Impurity 77 (CAS 136994-78-0)
- Oseltamivir Impurity 36 (CAS 212504-90-0)
- Oseltamivir Impurity 132 (CAS 162252-43-9)
- Oseltamivir Impurity 38 (CAS CATO-C4X-172038)
Recommended Standards
- Acetylcysteine EP Impurity A (CAS 56-89-3)
- Misoprostol EP Impurity F (CAS 41138-61-8)
- Tolterodine Impurity 26 (CAS 828933-86-4)
- Tiotropium EP Impurity A (CAS 4746-63-8)
- Levocarnitine Impurity 14 (CAS 873385-02-5)
- Dapoxetine Impurity 104 (CAS 1346603-24-4(free base))
- Nicotinamide Impurity 18 (CAS 38806-38-1)
- 2-(4-Fluoro-phenyl)-4,4-dimethoxy-1-[4-(4-trifluoromethyl-pyridin-2-yl)-piperazin-1-yl]-butan-1-one (CAS 1227268-99-6)
- 4,4-Difluorooctahydrocyclopenta[c]pyrrole hydrochloride (CAS 1421601-42-4)
- N-(4-Methoxyphenyl)-2-((1-phenyl-1H-tetrazol-5-yl)thio)propanamide (CAS 887346-70-5)
- Lifitegrast Impurity 19 (CAS 1289646-90-7)
- Phenyl isocyanate-<SUP>15</SUP>N (CAS 1013427-71-8)
- Nicardipine Impurity 24 (CAS 102993-38-4)
- (2S)-2-amino-4-(hydroxymethylphosphinyl)butanoyl-L-alanyl-L-alanine (2S)-2-amino-4-[hydroxy(methyl)phosphinoyl]butyryl-L-alanyl-L-alanine 2-Amino-4-(methylphosphino)butyrylalanylalanine 35597-43-4 Antibiotic SF 1293 Bialaphos CHEBI:3088 L-phosphinothricyl-L-alanyl-L-alanine N-{(2S)-2-amino-4-[hydroxy(methyl)phosphoryl]butanoyl}-L-alanyl-L-alanine PTT Phosphinothricylalanylalanine bilanafos gamma-(Hydroxymethylphosphinyl)-L-alpha-aminobutyryl-L-alanyl-L-alanine phosphinothricin tripeptide (CAS 35597-43-4)
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