| CAS No. | 321385-81-3 |
| Molecular Formula | C20H15Cl2N5 |
| Molecular Weight | 396.27 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
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.
1-(6-(2,4-Dichlorobenzyl)pyridazin-3-yl)-4-phenyl-1H-pyrazol-5-amine (CAS 321385-81-3) is a high-purity analytical reference standard with the molecular formula C20H15Cl2N5 and a molecular weight of 396.27 g/mol.
Based on its molecular formula C20H15Cl2N5, 1-(6-(2,4-Dichlorobenzyl)pyridazin-3-yl)-4-phenyl-1H-pyrazol-5-amine contains a nitrogen-containing heterocyclic scaffold, a nitrile group, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 396.27 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
As a certified reference material (CRM), 1-(6-(2,4-Dichlorobenzyl)pyridazin-3-yl)-4-phenyl-1H-pyrazol-5-amine 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.
| Molecular Formula | C20H15Cl2N5 |
| Molecular Weight | 396.27 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) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 5 |