Oseltamivir Impurity 161 CAS CATO-C4X-1720161
| CAS No. | CATO-C4X-1720161 |
| Molecular Formula | C8H12O7S |
| Molecular Weight | 252.24 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of Oseltamivir Impurity 161 (C8H12O7S) is characterized by a carbohydrate-derived structure, a sulfone group. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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 supplies Oseltamivir Impurity 161 (CAS CATO-C4X-1720161), a pharmacopoeial impurity reference standard (molecular formula C8H12O7S, MW 252.24 g/mol) used for the identification and quantification of trace impurities in APIs.
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 manufactures Oseltamivir Impurity 161 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 | C8H12O7S |
| Molecular Weight | 252.24 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 |
| Sulfur Atoms | 1 |
Related Oseltamivir Standards
- Oseltamivir Impurity 159 (CAS CATO-C4X-1720159)
- Oseltamivir Impurity 160 (CAS CATO-C4X-1720160)
- Oseltamivir Impurity 164 (CAS 204255-02-7)
- Oseltamivir Impurity 259 (CAS CATO-C4X-1720259)
- Oseltamivir Impurity C62 (CAS 1217834-81-5)
- Oseltamivir Impurity 145 (CAS 2714884-77-0)
- Oseltamivir Impurity 220 (CAS CATO-C4X-1720220)
- Oseltamivir Impurity 239 (CAS CATO-C4X-1720239)
Recommended Standards
- 1-(Benzenesulfonyl)-2-nitro-1H-pyrrole (CAS 1002331-30-7)
- 4-((2,4-Dioxothiazolidin-5-yl)amino)benzoic acid (CAS 1008003-22-2)
- Metformin Impurity 12 (CAS 32151-75-0)
- 3-(2,5-Dioxo-2,5-dihydro-1h-pyrrol-1-yl)benzene-1-sulfonamide (CAS 1020993-03-6)
- N-Nitroso Isoprenaline Impurity 32 (CAS CATO-C4X-277532)
- Ruxolitinib Impurity 31 (CAS CATO-C4X-205831)
- Tolvaptan Impurity 65 (CAS CATO-C4X-195565)
- Cefazolin Impurity 39 (CAS 13616-37-0)
- (1-(Aminomethyl)-2-oxabicyclo[2.2.2]Octan-4-yl)methanol (CAS 2174001-33-1)
- 5966-29-0 C16 Dihydroceramide (d18:0/16:0) C16 Sphinganine C16 dihydrosphingosine N-(hexadecanoyl)-sphinganine N-16:0 Sphinganine N-palmitoyl-D-erythro-sphinganine (CAS 5966-29-0)
- 3-(2-Chloroacetyl)-1-(1-methoxypropan-2-yl)urea (CAS 1094363-52-6)
- 2-Ethynyl-4-methylaniline (CAS 215589-37-0)
- 93952-00-2 Trichloroethylene-13C2 (Stabilized with Diisopropylamine) (CAS 93952-00-2)
- Semaglutide Impurity 185 (CAS CATO-C4X-2226185)
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