Upadacitinib Impurity 124 CAS CATO-C4X-2405124
| CAS No. | CATO-C4X-2405124 |
| Molecular Formula | C23H25N5O4S |
| Molecular Weight | 467.54 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
Upadacitinib Impurity 124 (CAS CATO-C4X-2405124) is a certified pharmaceutical impurity reference standard with the molecular formula C23H25N5O4S and a molecular weight of 467.54 g/mol.
Upadacitinib Impurity 124 (C23H25N5O4S) contains a flavonoid core, an amide group, a sulfone 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. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
As a certified reference material (CRM), Upadacitinib Impurity 124 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 | C23H25N5O4S |
| Molecular Weight | 467.54 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) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 5 |
| Sulfur Atoms | 1 |
Related Upadacitinib Standards
- Upadacitinib Impurity 106 (CAS CATO-C4X-2405106)
- Upadacitinib Impurity 170 (CAS CATO-C4X-2405170)
- Upadacitinib Impurity 109 (CAS CATO-C4X-2405109)
- Upadacitinib Impurity 66 (CAS CATO-C4X-240566)
- Upadacitinib Impurity 125 (CAS CATO-C4X-2405125)
- Upadacitinib Impurity 210 (CAS CATO-C4X-2405210)
- Upadacitinib Impurity 137 (CAS CATO-C4X-2405137)
- Upadacitinib Impurity 99 (CAS CATO-C4X-240599)
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