Oclacitinib impurity 3 CAS CATO-C4X-30183
| CAS No. | CATO-C4X-30183 |
| Molecular Formula | C21H26N4O3S |
| Molecular Weight | 414.52 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a process- or degradation-related impurity, Oclacitinib impurity 3 (CAS CATO-C4X-30183, C21H26N4O3S) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Oclacitinib impurity 3 (C21H26N4O3S) contains a steroid 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).
This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.
As a certified reference material (CRM), Oclacitinib impurity 3 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 | C21H26N4O3S |
| Molecular Weight | 414.52 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 1 |
Related Oclacitinib Standards
- Oclacitinib impurity 2 (CAS CATO-C4X-30182)
- Oclacitinib Impurity 24 (CAS CATO-C4X-301824)
- Oclacitinib impurity 9 (CAS CATO-C4X-30189)
- Oclacitinib Impurity 29 (CAS CATO-C4X-301829)
- Oclacitinib impurity 11 (CAS CATO-C4X-301811)
- Oclacitinib impurity 4 (CAS CATO-C4X-30184)
- Oclacitinib impurity 28 (CAS CATO-C4X-301828)
- Oclacitinib Impurity 46 (CAS CATO-C4X-301846)
Recommended Standards
- Diltiazem (CAS 42399-41-7)
- Ticagrelor Impurity 52 (CAS CATO-C4X-109352)
- 17- (Acetyloxy) - 3- methoxy- 20- oxo-pregna- 3, 5- diene- 6- carboxaldehyde (CAS 57361-81-6)
- Tisocromide (CAS 35423-51-9)
- Dotinurad Impurity 206 (CAS CATO-C4X-2494206)
- Moxifloxacin Impurity 67 (CAS 151213-39-7 (free base))
- Nefazodone Impurity 1 (CAS CATO-C4X-33501)
- (E)-3-(dimethylamino)-1-(2,4-dimethylthiazol-5-yl)prop-2-en-1-one (CAS 1432581-09-3)
- 4-(Phenyldiazenyl)isoxazole-3,5-diamine (CAS 94051-88-4)
- 6-Bromo-2,2-dimethyl-2H-pyrano[3,2-b]pyridine (CAS 1342891-15-9)
- Methyl 4-bromo-3-methyl-5-nitrobenzoate (CAS 412944-46-8)
- Ethyl 2-(isoxazol-3-yl)acetate (CAS 82669-57-6)
- Benzene-1,2,4,5-tetrayltetramethanethiol (CAS 82456-99-3)
- Semaglutide impurity 71 (CAS CATO-C4X-222671)
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