Oseltamivir Impurity 38 CAS CATO-C4X-172038
| CAS No. | CATO-C4X-172038 |
| Molecular Formula | C12H20O5 |
| Molecular Weight | 244.28 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 244.28 g/mol gives Oseltamivir Impurity 38 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies Oseltamivir Impurity 38 (CAS CATO-C4X-172038), a pharmacopoeial impurity reference standard (molecular formula C12H20O5, MW 244.28 g/mol) used for the identification and quantification of trace impurities in APIs.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, Oseltamivir Impurity 38 is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 244.28 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).
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 38 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 | C12H20O5 |
| Molecular Weight | 244.28 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
Related Oseltamivir Standards
- Oseltamivir Impurity 36 (CAS 212504-90-0)
- Oseltamivir Impurity 77 (CAS 136994-78-0)
- Oseltamivir Impurity 241 (CAS CATO-C4X-1720241)
- Oseltamivir Impurity 29 (CAS CATO-C4X-172029)
- Oseltamivir Impurity 85 (CAS CATO-C4X-172085)
- Oseltamivir Impurity 89 (CAS 1234858-94-6)
- Oseltamivir Impurity 172 (CAS CATO-C4X-1720172)
- Oseltamivir Impurity 132 (CAS 162252-43-9)
Recommended Standards
- 37136-39-3 [[(Tetrahydrofuran)-2-yl]methyl]propanedioic acid diethyl ester (CAS 37136-39-3)
- Baloxavir Marboxil Impurity 235 (CAS CATO-C4X-2108235)
- Ethyl 8-(hydroxymethyl)-1,4-dioxaspiro[4.5]decane-8-carboxylate (CAS 78461-64-0)
- Baloxavir Impurity 24 (CAS 2365473-57-8)
- Tazobactam Impurity 16 (CAS CATO-C4X-120516)
- Pazopanib Impurity 67 (CAS CATO-C4X-172567)
- Tranexamic Acid EP Impurity C (CAS CATO-C4X-177123)
- 2-amino-1-(4,4-difluorocyclohexyl)ethan-1-one hydrochloride (CAS 1909304-96-6)
- 5-Bromo-3-methoxybenzene-1,2-diol (CAS 38790-07-7)
- 1-(5-Amino-3-chloro-1H-indazol-1-yl)ethanone (CAS 1203897-92-0)
- 6-Chloro-2,3-dihydro-1H-indene-1-carbonitrile (CAS 783335-50-2)
- (5-(Ethoxycarbonyl)-1-methyl-1H-pyrazol-3-yl)boronic acid (CAS 2797070-55-2)
- 7-Amino-[1,2,4]triazolo[4,3-a]pyridine (CAS 1379186-04-5)
- TAT 14 Peptide (Nrf2 Activator III) (CAS 1362661-34-4)
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