Iguratimod Impurity 62 CAS CATO-C4X-182662
| CAS No. | CATO-C4X-182662 |
| Molecular Formula | C14H13NO4 |
| Molecular Weight | 259.26 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Iguratimod Impurity 62 (CAS CATO-C4X-182662) is a certified pharmaceutical impurity reference standard with the molecular formula C14H13NO4 and a molecular weight of 259.26 g/mol.
Iguratimod Impurity 62 (C14H13NO4) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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.
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 | C14H13NO4 |
| Molecular Weight | 259.26 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | >95% |
| 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; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 1 |
Related Iguratimod Standards
- Iguratimod Impurity 115 (CAS CATO-C4X-1826115)
- Iguratimod impurity 101 (CAS CATO-C4X-1826101)
- Iguratimod Impurity 151 (CAS 500887-53-6)
- Iguratimod Impurity 87 (CAS CATO-C4X-182687)
- Iguratimod Impurity 84 (CAS CATO-C4X-182684)
- Iguratimod impurity 89 (CAS CATO-C4X-182689)
- Iguratimod Impurity 136 (CAS CATO-C4X-1826136)
- Iguratimod Impurity 145 (CAS CATO-C4X-1826145)
Recommended Standards
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