Iguratimod Impurity 22 CAS CATO-C4X-182622
| CAS No. | CATO-C4X-182622 |
| Molecular Formula | C17H16N2O7S |
| Molecular Weight | 392.38 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C17H16N2O7S, Iguratimod Impurity 22 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 392.38 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 process- or degradation-related impurity, Iguratimod Impurity 22 (CAS CATO-C4X-182622, C17H16N2O7S) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
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.
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.
Physical & Chemical Properties
| Molecular Formula | C17H16N2O7S |
| Molecular Weight | 392.38 g/mol |
| Purity | >95% |
| Storage | Store at 2-8°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 Iguratimod Standards
- Iguratimod Impurity 45 (CAS CATO-C4X-182645)
- Iguratimod Impurity 65 (CAS CATO-C4X-182665)
- Iguratimod Impurity 69 (CAS CATO-C4X-182669)
- Iguratimod Impurity 31 (CAS CATO-C4X-182631)
- Iguratimod Impurity 47 (CAS 149456-97-3)
- Iguratimod Impurity 54 (CAS CATO-C4X-182654)
- Iguratimod Impurity 75 (CAS CATO-C4X-182675)
- Iguratimod Impurity 78 (CAS CATO-C4X-182678)
Recommended Standards
- Furosemide Impurity 40 (CAS 2309465-74-3)
- Cefamandole Impurity 21 (CAS CATO-C4X-122121)
- Topiroxostat Impurity 35 (CAS 2044706-78-5)
- Decernotinib (CAS 944842-54-0)
- Etrasimod impurity 19 (CAS CATO-C4X-321419)
- Mirogabalin Impurity 52 (CAS CATO-C4X-292452)
- Lemborexant Impurity 45 (CAS CATO-C4X-304245)
- 3-((2-Bromobenzyl)amino)propan-1-ol (CAS 40616-65-7)
- 1-Bromo-2-chloro-4-fluoro-5-iodobenzene (CAS 2460515-82-4)
- 1-(Benzyloxy)-5-bromo-3-chloro-2-fluorobenzene (CAS 1881320-82-6)
- 1-(4-Methoxybenzyl)-3-((1-phenylpyrrolidin-2-yl)methyl)urea (CAS 1797083-94-3)
- Bis(maltolato)oxovanadium(IV) (CAS 38213-69-3)
- 4-Methoxy-6-morpholino-1,3,5-triazin-2(1H)-one (CAS 361365-40-4)
- Peptide Impurity 06 (CAS CATO-CPTD788806)
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