4,5-Dichloro-2-(2,4-dichlorophenyl)-2,3-dihydropyridazin-3-one CAS 24725-65-3

Purity 97%+In StockPharmaceutical Standards
CAS No.24725-65-3
Molecular FormulaC10H4Cl4N2O
Molecular Weight309.96 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

4,5-Dichloro-2-(2,4-dichlorophenyl)-2,3-dihydropyridazin-3-one CAS 24725-65-3 chemical structure

Description

The occurrence of 4,5-Dichloro-2-(2,4-dichlorophenyl)-2,3-dihydropyridazin-3-one 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.

CATO supplies 4,5-Dichloro-2-(2,4-dichlorophenyl)-2,3-dihydropyridazin-3-one (CAS 24725-65-3), a certified reference material (molecular formula C10H4Cl4N2O, MW 309.96 g/mol) for analytical method development and quality control.

Structurally, 4,5-Dichloro-2-(2,4-dichlorophenyl)-2,3-dihydropyridazin-3-one (C10H4Cl4N2O) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 8.0, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 309.96 g/mol, it falls into the moderately-high-molecular-weight range. 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.

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 FormulaC10H4Cl4N2O
Molecular Weight309.96 g/mol
AppearancePale yellow to yellow crystalline powder. (slight halide-like odor, faint amine-like odor, low volatility)
Purity97%+
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)8.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1964
Halogen ContentCl-containing
Nitrogen Atoms2

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