Iguratimod Impurity 131 CAS CATO-C4X-1826131
| CAS No. | CATO-C4X-1826131 |
| Molecular Formula | C16H18N2O5S |
| Molecular Weight | 350.39 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C16H18N2O5S, Iguratimod Impurity 131 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 350.39 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.
Iguratimod Impurity 131 (CAS CATO-C4X-1826131) is a certified pharmaceutical impurity reference standard with the molecular formula C16H18N2O5S and a molecular weight of 350.39 g/mol.
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.
As a certified reference material (CRM), Iguratimod Impurity 131 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 | C16H18N2O5S |
| Molecular Weight | 350.39 g/mol |
| Purity | 97%+ |
| 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Iguratimod Standards
- Iguratimod Impurity 109 (CAS CATO-C4X-1826109)
- Iguratimod Impurity 149 (CAS CATO-C4X-1826149)
- Iguratimod Impurity 150 (CAS CATO-C4X-1826150)
- Iguratimod Impurity 72 (CAS CATO-C4X-182672)
- Iguratimod Impurity 73 (CAS CATO-C4X-182673)
- Iguratimod Impurity 114 (CAS 123663-48-9)
- Iguratimod Impurity 64 (CAS CATO-C4X-182664)
- Iguratimod Impurity 51 (CAS CATO-C4X-182651)
Recommended Standards
- PQ 69 (CAS 910045-32-8)
- N-Cyclopropyl-4-fluoro-N-((6-methyl-2-oxo-1,2-dihydroquinolin-3-yl)methyl)benzamide (CAS 606095-19-6)
- N-Cyclopropyl-2-fluoro-N-((6-methyl-2-oxo-1,2-dihydroquinolin-3-yl)methyl)benzamide (CAS 606095-16-3)
- N1-(Isoxazol-3-yl)-N2-(2-morpholino-2-(thiophen-2-yl)ethyl)oxalamide (CAS 899955-21-6)
- Neratinib Impurity 53 (CAS CATO-C4X-113453)
- Lamotrigine Dimer Impurity 9 (CAS 1797983-48-2)
- Gatifloxacin Impurity 16 (CAS 855997-06-7)
- 2-Methyl-5-(2-(2-nitrooxazol-5-yl)vinyl)oxazole (CAS 791853-13-9)
- (R)-2,2,2-trifluoro-1-(3,4,5-trifluorophenyl)ethan-1-amine (CAS 1213031-93-6)
- 2-Methyltetrahydrofuran-3-ol (CAS 29848-44-0)
- 5-(Hydroxyimino)-6-imino-1,3-dimethyldihydropyrimidine-2,4(1H,3H)-dione (CAS 58537-55-6)
- 3-(isoquinolin-4-yl)prop-2-enoic acid (CAS 478040-24-3)
- Dihydro-3-(2-propen-1-yl)-2(3H)-furanone (CAS 10491-63-1)
- Semaglutide impurity 193 (CAS CATO-C4X-2226193)
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