Oclacitinib impurity 4 CAS CATO-C4X-30184
| CAS No. | CATO-C4X-30184 |
| Molecular Formula | C19H29NO5S |
| Molecular Weight | 383.50 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
CATO supplies Oclacitinib impurity 4 (CAS CATO-C4X-30184), a pharmacopoeial impurity reference standard (molecular formula C19H29NO5S, MW 383.50 g/mol) used for the identification and quantification of trace impurities in APIs.
The molecular framework of Oclacitinib impurity 4 (C19H29NO5S) is characterized by a steroid 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 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.
Physical & Chemical Properties
| Molecular Formula | C19H29NO5S |
| Molecular Weight | 383.50 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Oclacitinib Standards
- Oclacitinib Impurity 29 (CAS CATO-C4X-301829)
- Oclacitinib Impurity 14 (CAS CATO-C4X-301814)
- Oclacitinib Impurity 41 (CAS CATO-C4X-301841)
- Oclacitinib Impurity 43 (CAS CATO-C4X-301843)
- Oclacitinib impurity 2 (CAS CATO-C4X-30182)
- Oclacitinib impurity 3 (CAS CATO-C4X-30183)
- Oclacitinib impurity 7 (CAS CATO-C4X-30187)
- Oclacitinib Impurity 23 (CAS CATO-C4X-301823)
Recommended Standards
- Cariprazine Impurity 25 (CAS CATO-C4X-240825)
- 1-Cyclohexyl-3-(1-(thiophene-2-carbonyl)-1,2,3,4-tetrahydroquinolin-6-yl)urea (CAS 1203355-61-6)
- Blonanserin Impurity 6 (CAS CATO-C4X-11106)
- 1-Cyclohexyl-3-(2-(thiophene-2-carbonyl)-1,2,3,4-tetrahydroisoquinolin-7-yl)urea (CAS 1207023-67-3)
- Ceftriaxone Impurity 24 (CAS CATO-C4X-116324)
- Diosmin EP Impurity C (CAS 552-57-8)
- Terazosin EP Impurity N (CAS 63074-07-7)
- 2-(Chloromethyl)-4-(difluoromethyl)-5-fluoropyridine-3-carboxylic acid (CAS 1805527-76-7)
- tert-Butyl 5-(fluoromethyl)-2,7-diazaspiro[3.5]nonane-2-carboxylate (CAS 1357353-43-5)
- Adamantan-1-ylhydrazine (CAS 16782-38-0)
- 1-Cyclohexyl-4-(piperidine-1-carbonyl)pyrrolidin-2-one (CAS 54839-22-4)
- N-(2-Fluorobenzyl)-1-(2-fluorophenyl)-N-methylmethanamine (CAS 1197870-17-9)
- 4-Bromo-3-(difluoromethyl)-2-(trifluoromethoxy)aniline (CAS 1805104-54-4)
- (Tyr?)-C-Type Natriuretic Peptide (32-53) (human, porcine, rat) (CAS 142878-79-3)
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