(4Z)-1-(6-Chloropyridin-2-yl)-4-({[3-(trifluoromethyl)phenyl]amino}methylidene)-4,5-dihydro-1H-pyrazol-5-one CAS 320419-29-2
| CAS No. | 320419-29-2 |
| Molecular Formula | C16H10ClF3N4O |
| Molecular Weight | 366.73 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
(4Z)-1-(6-Chloropyridin-2-yl)-4-({[3-(trifluoromethyl)phenyl]amino}methylidene)-4,5-dihydro-1H-pyrazol-5-one (CAS 320419-29-2), molecular formula C16H10ClF3N4O and molecular weight 366.73 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, (4Z)-1-(6-Chloropyridin-2-yl)-4-({[3-(trifluoromethyl)phenyl]amino}methylidene)-4,5-dihydro-1H-pyrazol-5-one (C16H10ClF3N4O) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 12.0, corresponding to approximately 12 ring(s) or double-bond equivalent(s). With a molecular weight of 366.73 g/mol, it falls into the moderately-high-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
As a certified reference material (CRM), (4Z)-1-(6-Chloropyridin-2-yl)-4-({[3-(trifluoromethyl)phenyl]amino}methylidene)-4,5-dihydro-1H-pyrazol-5-one 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 | C16H10ClF3N4O |
| Molecular Weight | 366.73 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 4 |
Related Z Standards
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Recommended Standards
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