| CAS No. | 175135-72-5 |
| Molecular Formula | C11H9Cl2FN4O |
| Molecular Weight | 303.12 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Compared with other compounds in its class, the molecular weight of 303.12 g/mol gives 4-Chloro-2-(3-chloro-4-fluorophenyl)-5-(1-methylhydrazino)-3-(2H)-pyridazinone distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies 4-Chloro-2-(3-chloro-4-fluorophenyl)-5-(1-methylhydrazino)-3-(2H)-pyridazinone (CAS 175135-72-5), a certified reference material (molecular formula C11H9Cl2FN4O, MW 303.12 g/mol) for analytical method development and quality control.
The molecular framework of 4-Chloro-2-(3-chloro-4-fluorophenyl)-5-(1-methylhydrazino)-3-(2H)-pyridazinone (C11H9Cl2FN4O) 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 the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 4-Chloro-2-(3-chloro-4-fluorophenyl)-5-(1-methylhydrazino)-3-(2H)-pyridazinone 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 | C11H9Cl2FN4O |
| Molecular Weight | 303.12 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 | 4 |