Iguratimod impurity 92 CAS CATO-C4X-182692
| CAS No. | CATO-C4X-182692 |
| Molecular Formula | C17H20N2O5S |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 400.87 g/mol gives Iguratimod impurity 92 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Iguratimod impurity 92 (CAS CATO-C4X-182692) is a certified pharmaceutical impurity reference standard with the molecular formula C17H20N2O5SHCl and a molecular weight of 400.87 g/mol.
Owing to a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution, Iguratimod impurity 92 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 400.87 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 certified reference material (CRM), Iguratimod impurity 92 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 | C17H20N2O5S HCl |
| Molecular Weight | 400.87 g/mol |
| Purity | 97%+ |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Iguratimod Standards
- Iguratimod Impurity 9 (CAS 10298-80-3)
- Iguratimod Impurity 40 (CAS 1179354-65-4)
- Iguratimod Impurity 39 (CAS 123662-92-0)
- Iguratimod Impurity 114 (CAS 123663-48-9)
- Iguratimod (CAS 123663-49-0)
- Iguratimod Impurity 48 (CAS 123663-50-3)
- Iguratimod Impurity 112 (CAS 123664-39-1)
- Iguratimod Impurity 3 (CAS 123664-52-8)
Recommended Standards
- Cefoperazone Impurity 67 (CAS CATO-C4X-114967)
- Verapamil EP Impurity M HCl (Mixture of Diastereomers) (CAS 190850-50-1)
- Crotamiton Impurity N4 (CAS 127345-12-4)
- (2,2-Dimethyl-1-(4-(trifluoromethoxy)phenyl)cyclopropyl)methanol (CAS 2228876-15-9)
- Ethyl 5-chloro-2,4-difluorobenzoate (CAS 1239592-10-9)
- (+)-N-((2,5-Dichloro-4-(1,1,2,3,3,3-hexafluoropropoxy)phenyl)carbamoyl)-2,6-difluorobenzamide (CAS 130841-22-4)
- Benzoylpaeoniflorin (CAS 38642-49-8)
- 2,2-Dibromo-1-(4-(tert-butyl)phenyl)ethan-1-one (CAS 936078-06-7)
- Olmesartan Impurity 13 (CAS 159532-62-4)
- Semaglutide impurity 71 (CAS CATO-C4X-222671)
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