| CAS No. | 1622861-41-9 |
| Molecular Formula | C16H13FN4O4 |
| Molecular Weight | 344.30 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
CATO supplies Methyl 1-(2-fluoro-4-(1H-pyrazol-1-yl)phenyl)-5-methoxy-4-oxo-1,4-dihydropyridazine-3-carboxylate (CAS 1622861-41-9), a certified reference material (molecular formula C16H13FN4O4, MW 344.30 g/mol) for analytical method development and quality control.
Structurally, Methyl 1-(2-fluoro-4-(1H-pyrazol-1-yl)phenyl)-5-methoxy-4-oxo-1,4-dihydropyridazine-3-carboxylate (C16H13FN4O4) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage, fluorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 12.0, corresponding to approximately 12 ring(s) or double-bond equivalent(s). With a molecular weight of 344.30 g/mol, it falls into the moderately-high-molecular-weight range. 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).
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.
CATO manufactures Methyl 1-(2-fluoro-4-(1H-pyrazol-1-yl)phenyl)-5-methoxy-4-oxo-1,4-dihydropyridazine-3-carboxylate 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.
| Molecular Formula | C16H13FN4O4 |
| Molecular Weight | 344.30 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1993 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 4 |