Oseltamivir Impurity 128 CAS CATO-C4X-1720128
| CAS No. | CATO-C4X-1720128 |
| Molecular Formula | C22H37NO6 |
| Molecular Weight | 411.53 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a process- or degradation-related impurity, Oseltamivir Impurity 128 (CAS CATO-C4X-1720128, C22H37NO6) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Structurally, Oseltamivir Impurity 128 (C22H37NO6) contains a steroid core, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 411.53 g/mol, it falls into the moderately-high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 128 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 | C22H37NO6 |
| Molecular Weight | 411.53 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature, 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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 1 |
Related Oseltamivir Standards
- Oseltamivir Impurity 114 (CAS CATO-C4X-1720114)
- Oseltamivir Impurity 130 (CAS CATO-C4X-1720130)
- Oseltamivir Impurity 99 (CAS CATO-C4X-172099)
- Oseltamivir impurity 235 (CAS CATO-C4X-1720235)
- Oseltamivir impurity 273 (CAS CATO-C4X-1720273)
- Oseltamivir Impurity 155 (CAS CATO-C4X-1720155)
- Oseltamivir Impurity 146 (CAS CATO-C4X-1720146)
- Oseltamivir Impurity 151 (CAS 651324-06-0)
Recommended Standards
- LCZ-696 Impurity 50 (CAS 149709-60-4)
- 5-Nitro-1'-((2-(trimethylsilyl)ethoxy)methyl)-1,3-dihydrospiro[indene-2,3'-pyrrolo[2,3-b]pyridin]-2'(1'H)-one (CAS 879132-49-7)
- Sacubitril Impurity 32 (CAS CATO-C4X-280932)
- 3-Cyclopentyl-N-(2-((4-(4-fluorophenyl)piperazin-1-yl)sulfonyl)ethyl)propanamide (CAS 897618-52-9)
- Nitroso Perindopril EP impurity M (CAS CATO-C4X-125250)
- Metoclopramide impurity 81 (CAS CATO-C4X-141581)
- Norepinephrine impurity 135 (CAS CATO-C4X-1514135)
- 2-(2-Chlorophenyl)-6-ethylquinoline-4-carboxylic acid (CAS 667435-73-6)
- 3-Amino-6-(4-methylpiperazin-1-yl)picolinonitrile (CAS 1216615-86-9)
- 3,4-Dihydro-[1,2]oxazino[3,2-b]quinazolin-10(2H)-one (CAS 51866-11-6)
- 3-(ethylamino)butanoic acid (CAS 859284-78-9)
- 8-(4-Iodophenyl)-8-oxooctanenitrile (CAS 898767-90-3)
- 2,2-Dimethyl-3-phenylpropionic Acid (CAS 5669-14-7)
- Semaglutide Impurity 125 xTFA Salt (CAS CATO-C4X-2226125)
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