Iguratimod Impurity 46 CAS CATO-C4X-182646
| CAS No. | CATO-C4X-182646 |
| Molecular Formula | C18H14N2O7S |
| Molecular Weight | 402.38 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Iguratimod Impurity 46 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.
As a process- or degradation-related impurity, Iguratimod Impurity 46 (CAS CATO-C4X-182646, C18H14N2O7S) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
The molecular framework of Iguratimod Impurity 46 (C18H14N2O7S) is characterized by a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
Physical & Chemical Properties
| Molecular Formula | C18H14N2O7S |
| Molecular Weight | 402.38 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 |
| Degree of Unsaturation (DBE) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Iguratimod Standards
- Iguratimod Impurity 138 (CAS CATO-C4X-1826138)
- Iguratimod Impurity 18 (CAS CATO-C4X-182618)
- Iguratimod Impurity 41 (CAS CATO-C4X-182641)
- Iguratimod Impurity 67 (CAS CATO-C4X-182667)
- Iguratimod Impurity 20 (CAS 544482-14-6)
- Iguratimod Impurity 71 (CAS CATO-C4X-182671)
- Iguratimod Impurity 31 (CAS CATO-C4X-182631)
- Iguratimod Impurity 47 (CAS 149456-97-3)
Recommended Standards
- 2,5-Bis(2-(2-methoxyethoxy)ethoxy)terephthalic acid (CAS 116160-23-7)
- 3,5,6,7,3,4-Hexamethoxyflavone (CAS 1251-84-9)
- VU 1545 (CAS 890764-63-3)
- (2R,3R,4S,5S,6R)-2-(Benzyloxy)-6-((((2S,3R,4S,5R)-3,4,5-trihydroxytetrahydro-2H-pyran-2-yl)oxy)methyl)tetrahydro-2H-pyran-3,4,5-triol (CAS 130622-31-0)
- Brexpiprazole Impurity 83 (CAS 2295935-56-5)
- Abacavir Impurity 17 (CAS CATO-C4X-152717)
- Telmisartan EP Impurity G (CAS 144702-27-2)
- 2-Propenamide, N-[2-(diethylamino)ethyl]-, homopolymer (CAS 31014-51-4)
- 4-(2-Chlorophenoxy)-3-fluoroaniline (CAS 946785-59-7)
- Ethyl (3R,4S)-1-benzyl-4-(3,4-difluorophenyl)pyrrolidine-3-carboxylate (CAS 1091474-27-9)
- Cilengitide (CAS 188968-51-6)
- Relebactam Impurity 19 (CAS CATO-C4X-214419)
- 5-Chloromethyl-1-propyl-1H-imidazole hydrochloride (CAS 497223-15-1)
- (Tyr?)-C-Peptide (dog) (CAS 101135-67-5)
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