5-(3-Chlorophenoxy)-1-methyl-3-(trifluoromethyl)-1H-pyrazole-4-carboxylic acid CAS 282523-49-3

Description

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.

5-(3-Chlorophenoxy)-1-methyl-3-(trifluoromethyl)-1H-pyrazole-4-carboxylic acid (CAS 282523-49-3) is a high-purity analytical reference standard with the molecular formula C12H8ClF3N2O3 and a molecular weight of 320.65 g/mol.

Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution, 5-(3-Chlorophenoxy)-1-methyl-3-(trifluoromethyl)-1H-pyrazole-4-carboxylic acid is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 320.65 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

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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