Iguratimod Impurity 47 CAS 149456-97-3
| CAS No. | 149456-97-3 |
| Molecular Formula | C18H20N2O6S |
| Molecular Weight | 392.43 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Iguratimod Impurity 47 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.
Iguratimod Impurity 47 (CAS 149456-97-3) is a certified pharmaceutical impurity reference standard with the molecular formula C18H20N2O6S and a molecular weight of 392.43 g/mol.
Owing to a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, Iguratimod Impurity 47 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 392.43 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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.
Physical & Chemical Properties
| Molecular Formula | C18H20N2O6S |
| Molecular Weight | 392.43 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1999 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Iguratimod Standards
- Iguratimod Impurity 31 (CAS CATO-C4X-182631)
- Iguratimod Impurity 54 (CAS CATO-C4X-182654)
- Iguratimod Impurity 75 (CAS CATO-C4X-182675)
- Iguratimod Impurity 78 (CAS CATO-C4X-182678)
- Iguratimod impurity 93 (CAS CATO-C4X-182693)
- Iguratimod Impurity 22 (CAS CATO-C4X-182622)
- Iguratimod Impurity 45 (CAS CATO-C4X-182645)
- Iguratimod Impurity 65 (CAS CATO-C4X-182665)
Recommended Standards
- Glipizide EP Impurity J (CAS 1076198-09-8)
- Sildenafil EP Impurity D (CAS 1357931-55-5)
- Valsartan Impurity 126 (CAS CATO-C4X-1057126)
- Vardenafil EP Impurity B (CAS 437717-43-6)
- Salbutamol EP Impurity A (CAS 870076-72-5)
- Posaconazole impurity 224 (CAS CATO-C4X-1208224)
- Amlodipine Impurity 16 (CAS CATO-C4X-109516)
- Cnidicin (CAS 14348-21-1)
- 2-(TERT-BUTYL)PHENYL ISOCYANATE (CAS 56309-60-5)
- Gadobutrol Impurity 104 4HCl (CAS 112193-75-6（free base）)
- 4-{[2-(Dimethylamino)ethyl]amino}-3-nitrobenzoic acid (CAS 104144-91-4)
- 2-(3,4,5-Trichlorophenyl)pyridine-3-acetonitrile (CAS 1361648-32-9)
- 3-Nitrotetrahydrothiophene 1,1-dioxide (CAS 18760-21-9)
- Vasonatrin Peptide (VNP) trifluoroacetate salt (CAS 141676-35-9)
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