Ethyl 1-(4-chlorophenyl)-4-hydroxy-6-oxo-1,6-dihydropyridazine-3-carboxylate CAS 339030-76-1

Purity 97%+In StockPharmaceutical Standards
CAS No.339030-76-1
Molecular FormulaC13H11ClN2O4
Molecular Weight294.69 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Ethyl 1-(4-chlorophenyl)-4-hydroxy-6-oxo-1,6-dihydropyridazine-3-carboxylate CAS 339030-76-1 chemical structure

Description

The occurrence of Ethyl 1-(4-chlorophenyl)-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, chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

Ethyl 1-(4-chlorophenyl)-4-hydroxy-6-oxo-1,6-dihydropyridazine-3-carboxylate (CAS 339030-76-1) is a high-purity analytical reference standard with the molecular formula C13H11ClN2O4 and a molecular weight of 294.69 g/mol.

The molecular framework of Ethyl 1-(4-chlorophenyl)-4-hydroxy-6-oxo-1,6-dihydropyridazine-3-carboxylate (C13H11ClN2O4) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, 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. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.

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 Ethyl 1-(4-chlorophenyl)-4-hydroxy-6-oxo-1,6-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.

Physical & Chemical Properties

Molecular FormulaC13H11ClN2O4
Molecular Weight294.69 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 ContentCl-containing
Nitrogen Atoms2

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