| CAS No. | 175135-45-2 |
| Molecular Formula | C11H6Cl3FN2O |
| Molecular Weight | 307.54 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
4,5-Dichloro-2-(2-chloro-6-fluorobenzyl)pyridazin-3(2h)-one (CAS 175135-45-2) is a high-purity analytical reference standard with the molecular formula C11H6Cl3FN2O and a molecular weight of 307.54 g/mol.
Based on its molecular formula C11H6Cl3FN2O, 4,5-Dichloro-2-(2-chloro-6-fluorobenzyl)pyridazin-3(2h)-one contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 307.54 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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), 4,5-Dichloro-2-(2-chloro-6-fluorobenzyl)pyridazin-3(2h)-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.
| Molecular Formula | C11H6Cl3FN2O |
| Molecular Weight | 307.54 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2007 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 2 |