5-Chloro-4-{[(2,4-dimethylphenyl)sulfanyl]methyl}-1-methyl-3-phenyl-1H-pyrazole CAS 318234-14-9

Purity 97%+In StockPharmaceutical Standards
CAS No.318234-14-9
Molecular FormulaC19H19ClN2S
Molecular Weight342.89 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

5-Chloro-4-{[(2,4-dimethylphenyl)sulfanyl]methyl}-1-methyl-3-phenyl-1H-pyrazole CAS 318234-14-9 chemical structure

Description

CATO supplies 5-Chloro-4-{[(2,4-dimethylphenyl)sulfanyl]methyl}-1-methyl-3-phenyl-1H-pyrazole (CAS 318234-14-9), a certified reference material (molecular formula C19H19ClN2S, MW 342.89 g/mol) for analytical method development and quality control.

Based on its molecular formula C19H19ClN2S, 5-Chloro-4-{[(2,4-dimethylphenyl)sulfanyl]methyl}-1-methyl-3-phenyl-1H-pyrazole contains a nitrogen-containing heterocyclic scaffold, a nitrile group, sulfur-containing functionality, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 342.89 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.

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 FormulaC19H19ClN2S
Molecular Weight342.89 g/mol
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)11.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2025
Halogen ContentCl-containing
Nitrogen Atoms2
Sulfur Atoms1

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