Oseltamivir Impurity 67 CAS 220626-12-0
| CAS No. | 220626-12-0 |
| Molecular Formula | C10H16O7S |
| Molecular Weight | 280.29 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 280.29 g/mol gives Oseltamivir Impurity 67 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies Oseltamivir Impurity 67 (CAS 220626-12-0), a pharmacopoeial impurity reference standard (molecular formula C10H16O7S, MW 280.29 g/mol) used for the identification and quantification of trace impurities in APIs.
Oseltamivir Impurity 67 (C10H16O7S) contains a sulfone 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. 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.
As a certified reference material (CRM), Oseltamivir Impurity 67 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C10H16O7S |
| Molecular Weight | 280.29 g/mol |
| Purity | >95% |
| Storage | Store in a cool place (≤25°C), keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 2020 |
| Sulfur Atoms | 1 |
Related Oseltamivir Standards
- Oseltamivir Impurity 153 (CAS CATO-C4X-1720153)
- Oseltamivir impurity 203 (CAS CATO-C4X-1720203)
- Oseltamivir EP Impurity A (CAS 1364932-19-3)
- Oseltamivir EP Impurity C (CAS 187227-45-8)
- Oseltamivir Impurity N42 (CAS 1052063-36-1)
- Oseltamivir Impurity N7 (CAS 1376142-56-1)
- Oseltamivir EP Impurity C-d3 (CAS CATO-C4X-1720233)
- Oseltamivir-d3 Acid (CAS 1242184-43-5)
Recommended Standards
- Topiroxostat Impurity 53 (CAS CATO-C4X-105553)
- Baloxavir Impurity 106 (CAS CATO-C4X-2108106)
- Topiroxostat Impurity 32 (CAS 2044706-50-3)
- Baloxavir Impurity 17 (CAS 2136287-65-3)
- Mycophenolate EP Impurity B (CAS 2767988-82-7)
- Dronedarone Impurity 2 (CAS CATO-C4X-10922)
- Artesunate Impurity 1 (CAS 958447-25-1)
- N-(4-Methoxyphenyl)-1-oxoisochromane-3-carboxamide (CAS 618392-63-5)
- 2-Chloro-N-(3-cyano-1-(4-fluorobenzyl)-4,5-dimethyl-1H-pyrrol-2-yl)acetamide (CAS 852400-31-8)
- (S)-[[2-(Bromomethyl)-3-methylbutoxy]methyl]benzene (CAS 172901-00-7)
- 3-Bromo-1-(6-methoxy-1-methyl-1H-indol-3-yl)-2-methylpropan-1-one (CAS 1134334-74-9)
- 4-(2-Oxo-1,3-oxazolidin-3-yl)benzene-1-sulfonyl chloride (CAS 1097732-13-2)
- 3-Isopropyl-3H-[1,2,3]triazolo[4,5-d]pyrimidine-7-carboxylic acid (CAS 1823923-49-4)
- Semaglutide Impurity 147 (CAS CATO-C4X-2226147)
Why CATO?
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- 130,000+ catalog items in stock, COA supplied with every batch
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