1-[(2,4-dichlorophenyl)methyl]-3-methyl-4,5-dihydro-1H-pyrazol-5-one CAS 568557-48-2

Purity 97%+In StockPharmaceutical Standards
CAS No.568557-48-2
Molecular FormulaC11H10Cl2N2O
Molecular Weight257.12 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

1-[(2,4-dichlorophenyl)methyl]-3-methyl-4,5-dihydro-1H-pyrazol-5-one CAS 568557-48-2 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 257.12 g/mol gives 1-[(2,4-dichlorophenyl)methyl]-3-methyl-4,5-dihydro-1H-pyrazol-5-one distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

1-[(2,4-dichlorophenyl)methyl]-3-methyl-4,5-dihydro-1H-pyrazol-5-one (CAS 568557-48-2) is a high-purity analytical reference standard with the molecular formula C11H10Cl2N2O and a molecular weight of 257.12 g/mol.

Structurally, 1-[(2,4-dichlorophenyl)methyl]-3-methyl-4,5-dihydro-1H-pyrazol-5-one (C11H10Cl2N2O) 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 7.0, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 257.12 g/mol, it falls into the medium-molecular-weight range. 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.

CATO manufactures 1-[(2,4-dichlorophenyl)methyl]-3-methyl-4,5-dihydro-1H-pyrazol-5-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.

Physical & Chemical Properties

Molecular FormulaC11H10Cl2N2O
Molecular Weight257.12 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light, 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
Degree of Unsaturation (DBE)7.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1984
Halogen ContentCl-containing
Nitrogen Atoms2

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