5-Methyl-1-(2-methylphenyl)-1H-pyrazole-4-carboxylic acid CAS 423768-56-3

Description

Compared with other compounds in its class, the molecular weight of 216.24 g/mol gives 5-Methyl-1-(2-methylphenyl)-1H-pyrazole-4-carboxylic acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

5-Methyl-1-(2-methylphenyl)-1H-pyrazole-4-carboxylic acid (CAS 423768-56-3) is a high-purity analytical reference standard with the molecular formula C12H12N2O2 and a molecular weight of 216.24 g/mol.

5-Methyl-1-(2-methylphenyl)-1H-pyrazole-4-carboxylic acid (C12H12N2O2) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.

As a certified reference material (CRM), 5-Methyl-1-(2-methylphenyl)-1H-pyrazole-4-carboxylic acid meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.

Physical & Chemical Properties

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