4,5-Dichloro-2-(4-fluorophenyl)pyridazin-3(2H)-one CAS 24725-63-1
| CAS No. | 24725-63-1 |
| Molecular Formula | C10H5Cl2FN2O |
| Molecular Weight | 259.06 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
4,5-Dichloro-2-(4-fluorophenyl)pyridazin-3(2H)-one (CAS 24725-63-1), molecular formula C10H5Cl2FN2O and molecular weight 259.06 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 4,5-Dichloro-2-(4-fluorophenyl)pyridazin-3(2H)-one (C10H5Cl2FN2O) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
CATO manufactures 4,5-Dichloro-2-(4-fluorophenyl)pyridazin-3(2H)-one under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C10H5Cl2FN2O |
| Molecular Weight | 259.06 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, faint amine-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| 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.) | 1964 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 2 |
Related Dichloro Standards
- 4,5-Dichloro-2-(2-fluorophenyl)pyridazin-3(2H)-one (CAS 937619-97-1)
- 4,6-Dichloro-2-(1,1,1-trifluoro-2-methylpropan-2-yl)pyrimidine (CAS 2284735-43-7)
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- 4,6-Dichloro-N-(4-fluorophenyl)-1,3,5-triazin-2-amine (CAS 131468-33-2)
- 2-(4,5-Dichloro-1H-imidazol-1-yl)-3-nitropyridine (CAS 649662-62-4)
- 3,3-Dichloro-1,1,1-trifluoro-2-phenylpropan-2-ol (CAS 239074-65-8)
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