Iguratimod Impurity 11 CAS 149456-98-4
| CAS No. | 149456-98-4 |
| Molecular Formula | C17H18N2O6S |
| Molecular Weight | 378.40 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Structurally, Iguratimod Impurity 11 (C17H18N2O6S) contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 10.0, corresponding to approximately 10 ring(s) or double-bond equivalent(s). With a molecular weight of 378.40 g/mol, it falls into the moderately-high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Iguratimod Impurity 11 (CAS 149456-98-4) is a certified pharmaceutical impurity reference standard with the molecular formula C17H18N2O6S and a molecular weight of 378.40 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 11 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 | C17H18N2O6S |
| Molecular Weight | 378.40 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) | 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 27 (CAS CATO-C4X-182627)
- Iguratimod Impurity 30 (CAS CATO-C4X-182630)
- Iguratimod Impurity 57 (CAS 149457-04-5)
- Iguratimod impurity 99 (CAS CATO-C4X-182699)
- Iguratimod Impurity 1 (CAS CATO-C4X-18261)
- Iguratimod-d5 (CAS 2816542-08-0)
- Iguratimod Impurity 107 (CAS CATO-C4X-1826107)
- Iguratimod (CAS 123663-49-0)
Recommended Standards
- Marbofloxacin EP Impurity E (CAS 2249835-04-7)
- 5-HO-EHDPP (CAS 2173149-33-0)
- Ampicillin Impurity 94 (CAS CATO-C4X-144394)
- Ampicillin Impurity 82 (CAS CATO-C4X-144382)
- Morpholine Impurity 4 (CAS CATO-C4X-31684)
- Mianserin Impurity 86 (CAS CATO-C4X-136986)
- Eldecalcitol Impurity 17 (CAS CATO-C4X-214017)
- 1-Bromo-4-heptylbenzene (stabilized with Copper chip) (CAS 76287-49-5)
- 3-(Benzhydryloxy)-8-azabicyclo[3.2.1]octane hydrochloride (CAS 78503-32-9)
- 3-Cyclopropoxy-2-ethyl-5-iodopyridine (CAS 1243445-11-5)
- 5-Pentadecylresorcinol (CAS 3158-56-3)
- Irbesartan Impurity 2 (CAS 177219-40-8)
- 3-[(aminocarbonyl)amino]-3-(3-bromophenyl)propanoic acid (CAS 743440-59-7)
- Semaglutide impurity 72 (CAS CATO-C4X-222672)
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