| CAS No. | 344282-67-3 |
| Molecular Formula | C16H13BrN2O |
| Molecular Weight | 329.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Compared with other compounds in its class, the molecular weight of 329.19 g/mol gives 6-(4-Bromophenyl)-4-phenyl-4,5-dihydropyridazin-3(2H)-one distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
6-(4-Bromophenyl)-4-phenyl-4,5-dihydropyridazin-3(2H)-one (CAS 344282-67-3) is a high-purity analytical reference standard with the molecular formula C16H13BrN2O and a molecular weight of 329.19 g/mol.
Based on its molecular formula C16H13BrN2O, 6-(4-Bromophenyl)-4-phenyl-4,5-dihydropyridazin-3(2H)-one contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, bromine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 329.19 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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.
| Molecular Formula | C16H13BrN2O |
| Molecular Weight | 329.19 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 2 |