Sivelestat Impurity 6 CAS CATO-C4X-21236
| CAS No. | CATO-C4X-21236 |
| Molecular Formula | C20H22N2O7S |
| Molecular Weight | 434.46 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
As a process- or degradation-related impurity, Sivelestat Impurity 6 (CAS CATO-C4X-21236, C20H22N2O7S) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Based on its molecular formula C20H22N2O7S, Sivelestat Impurity 6 contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 434.46 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).
As a certified reference material (CRM), Sivelestat Impurity 6 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 | C20H22N2O7S |
| Molecular Weight | 434.46 g/mol |
| Purity | >95% |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Sivelestat Standards
- Sivelestat (CAS 127373-66-4)
- Sivelestat Impurity 33 (CAS CATO-C4X-212333)
- Sivelestat impurity 36 (CAS CATO-C4X-212336)
- Sivelestat sodium Impurity 5 (CAS 127373-95-9)
- Sivelestat impurity 37 (CAS CATO-C4X-212337)
- Sivelestat Impurity 9 (CAS 1094231-79-4)
- Sivelestat sodium impurity 44 (CAS CATO-C4X-212344)
- Sivelestat sodium impurity 47 (CAS CATO-C4X-212347)
Recommended Standards
- Evocalcet impurity 55 (CAS CATO-C4X-248555)
- Olaparib Impurity 127 (CAS CATO-C4X-1135127)
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- Olaparib Impurity 126 (CAS CATO-C4X-1135126)
- Oxybuprocaine Impurity 5 (CAS CATO-C4X-12275)
- Iodixanol Impurity 5 (CAS CATO-C4X-16635)
- Butylphthalide Impurity 15 (CAS 3453-64-3)
- 5-(4-Cyanobenzamido)-2-methoxypyridine 1-oxide (CAS 400077-25-0)
- (R)-2-Amino-2-(6-(hydroxymethyl)pyridin-3-yl)ethan-1-ol (CAS 1213954-81-4)
- 5-Chloro-4-fluoro-2-nitrobenzaldehyde (CAS 213382-47-9)
- [(4-fluorophenyl)methyl](prop-2-yn-1-yl)amine hydrochloride (CAS 1158359-45-5)
- 5-Hydroxy-4-(methylthio)-2-phenylpyridazin-3(2H)-one (CAS 64178-80-9)
- 2-Chloro-3-ethylquinoxaline (CAS 77186-62-0)
- Neuropeptide SF (human) (CAS 192387-39-6)
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