2-(3-Chlorophenyl)-4-(3,4-dichlorophenyl)-1,2-dihydro-3H-pyrazol-3-one CAS 338978-53-3

Description

CATO manufactures 2-(3-Chlorophenyl)-4-(3,4-dichlorophenyl)-1,2-dihydro-3H-pyrazol-3-one 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.

2-(3-Chlorophenyl)-4-(3,4-dichlorophenyl)-1,2-dihydro-3H-pyrazol-3-one (CAS 338978-53-3) is a high-purity analytical reference standard with the molecular formula C15H9Cl3N2O and a molecular weight of 339.60 g/mol.

Based on its molecular formula C15H9Cl3N2O, 2-(3-Chlorophenyl)-4-(3,4-dichlorophenyl)-1,2-dihydro-3H-pyrazol-3-one contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 339.60 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.

Physical & Chemical Properties

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