Ritlecitinib impurity 4 CAS 1792181-97-5
| CAS No. | 1792181-97-5 |
| Molecular Formula | C15H19N5O |
| Molecular Weight | 285.34 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Ritlecitinib impurity 4 (CAS 1792181-97-5) is a certified pharmaceutical impurity reference standard with the molecular formula C15H19N5O and a molecular weight of 285.34 g/mol.
Ritlecitinib impurity 4 (C15H19N5O) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. Its physicochemical properties are representative of its class; 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).
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), Ritlecitinib impurity 4 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 | C15H19N5O |
| Molecular Weight | 285.34 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1994 |
| Nitrogen Atoms | 5 |
Related Ritlecitinib Standards
- Ritlecitinib (CAS 1792180-81-4)
- Ritlecitinib impurity 5 (CAS 1792180-79-0)
- Ritlecitinib Impurity 6 (CAS 1792181-98-6)
- Ritlecitinib impurity 1 (CAS 1271024-76-0)
- Ritlecitinib impurity 2 (CAS 1799311-98-0)
- Ritlecitinib impurity 3 (CAS 1932293-70-3)
- Ritlecitinib malonate, >98% (HPLC) (CAS 2140301-97-7)
- Ritlecitinib Tosylate (CAS 2192215-81-7)
Recommended Standards
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- Piperine (CAS 94-62-2)
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- Menaquinone impurity 39 (CAS CATO-C4X-207639)
- Cloransulam-Methyl Impurity 5 (CAS CATO-C4X-31705)
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