Iguratimod Impurity 87 CAS CATO-C4X-182687
| CAS No. | CATO-C4X-182687 |
| Molecular Formula | C7H6ClNO5S |
| Molecular Weight | 251.64 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.
CATO supplies Iguratimod Impurity 87 (CAS CATO-C4X-182687), a pharmacopoeial impurity reference standard (molecular formula C7H6ClNO5S, MW 251.64 g/mol) used for the identification and quantification of trace impurities in APIs.
Based on its molecular formula C7H6ClNO5S, Iguratimod Impurity 87 contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 251.64 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | C7H6ClNO5S |
| Molecular Weight | 251.64 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| 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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Iguratimod Standards
- Iguratimod Impurity 136 (CAS CATO-C4X-1826136)
- Iguratimod Impurity 145 (CAS CATO-C4X-1826145)
- Iguratimod Impurity 4 (CAS 84594-95-6)
- Iguratimod Impurity 52 (CAS 82780-78-7)
- Iguratimod Impurity 115 (CAS CATO-C4X-1826115)
- Iguratimod Impurity 62 (CAS CATO-C4X-182662)
- Iguratimod Impurity 86 (CAS CATO-C4X-182686)
- Iguratimod impurity 101 (CAS CATO-C4X-1826101)
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Why CATO?
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- 130,000+ catalog items in stock, COA supplied with every batch
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