(5-(4-Chlorophenyl)-1-(2,4-dichlorophenyl)-1H-pyrazol-3-yl)(morpholino)methanone CAS 158939-84-5
| CAS No. | 158939-84-5 |
| Molecular Formula | C20H16Cl3N3O2 |
| Molecular Weight | 436.72 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
(5-(4-Chlorophenyl)-1-(2,4-dichlorophenyl)-1H-pyrazol-3-yl)(morpholino)methanone (C20H16Cl3N3O2) contains a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
(5-(4-Chlorophenyl)-1-(2,4-dichlorophenyl)-1H-pyrazol-3-yl)(morpholino)methanone (CAS 158939-84-5), molecular formula C20H16Cl3N3O2 and molecular weight 436.72 g/mol, is a CATO reference standard with documented purity and traceability.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), (5-(4-Chlorophenyl)-1-(2,4-dichlorophenyl)-1H-pyrazol-3-yl)(morpholino)methanone 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 | C20H16Cl3N3O2 |
| Molecular Weight | 436.72 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2002 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
Related Chlorophenyl Standards
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Recommended Standards
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