Sivelestat sodium impurity 46 CAS CATO-C4X-212346
| CAS No. | CATO-C4X-212346 |
| Molecular Formula | C15H11NO5 |
| Molecular Weight | 285.25 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
As a process- or degradation-related impurity, Sivelestat sodium impurity 46 (CAS CATO-C4X-212346, C15H11NO5) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Based on its molecular formula C15H11NO5, Sivelestat sodium impurity 46 contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 285.25 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).
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.
Physical & Chemical Properties
| Molecular Formula | C15H11NO5 |
| Molecular Weight | 285.25 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 1 |
Related Sivelestat Standards
- Sivelestat Impurity 18 (CAS 150374-97-3)
- Sivelestat sodium impurity 45 (CAS CATO-C4X-212345)
- Sivelestat Impurity 10 (CAS CATO-C4X-212310)
- Sivelestat sodium impurity 22 (CAS 1655497-02-1)
- Sivelestat sodium Impurity 2 (CAS 150374-99-5)
- Sivelestat sodium Impurity 32 (CAS CATO-C4X-212332)
- Sivelestat sodium impurity 41 (CAS CATO-C4X-212341)
- Sivelestat sodium impurity 42 (CAS CATO-C4X-212342)
Recommended Standards
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- Atrasentan Impurity 25 (CAS 1058395-23-5)
- Posaconazole Impurity 259 (CAS CATO-C4X-1208259)
- Ciprofloxacin Impurity 34 (CAS CATO-C4X-136234)
- 1-(4-(5-Amino-1H-pyrazol-1-yl)piperidin-1-yl)ethan-1-one (CAS 1365969-11-4)
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- 1-(1H-Benzo[d][1,2,3]triazol-1-yl)propyl cinnamate (CAS 304690-71-9)
- tert-Butyl ((3S,5R)-5-methyl-1-(3-nitropyridin-4-yl)piperidin-3-yl)carbamate (CAS 1405128-33-7)
- 3-(5-Methyl-1h-pyrazol-1-yl)propan-1-ol (CAS 1006348-60-2)
- N-(4-chlorophenyl)-2-(4-methoxybenzyl)thiazole-4-carboxamide (CAS 478030-26-1)
- Q-Peptide trifluoroacetate salt (CAS 1361235-89-3)
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