Ethyl 1-(4-fluorophenyl)-4-hydroxy-6-oxo-1,6-dihydropyridazine-3-carboxylate CAS 339031-84-4

Purity 97%+In StockPharmaceutical Standards
CAS No.339031-84-4
Molecular FormulaC13H11FN2O4
Molecular Weight278.24 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Ethyl 1-(4-fluorophenyl)-4-hydroxy-6-oxo-1,6-dihydropyridazine-3-carboxylate CAS 339031-84-4 chemical structure

Description

The occurrence of Ethyl 1-(4-fluorophenyl)-4-hydroxy-6-oxo-1,6-dihydropyridazine-3-carboxylate is closely related to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

Ethyl 1-(4-fluorophenyl)-4-hydroxy-6-oxo-1,6-dihydropyridazine-3-carboxylate (CAS 339031-84-4) is a high-purity analytical reference standard with the molecular formula C13H11FN2O4 and a molecular weight of 278.24 g/mol.

Based on its molecular formula C13H11FN2O4, Ethyl 1-(4-fluorophenyl)-4-hydroxy-6-oxo-1,6-dihydropyridazine-3-carboxylate contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 278.24 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

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.

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.

Physical & Chemical Properties

Molecular FormulaC13H11FN2O4
Molecular Weight278.24 g/mol
AppearancePale yellow to yellow crystalline powder. (slight halide-like odor)
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityMay 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)9.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2025
Halogen ContentF-containing
Nitrogen Atoms2

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