1-(4-Chlorophenyl)-4-formyl-5-hydroxy-1H-pyrazole-3-carboxamide CAS 61378-76-5

Description

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 supplies 1-(4-Chlorophenyl)-4-formyl-5-hydroxy-1H-pyrazole-3-carboxamide (CAS 61378-76-5), a certified reference material (molecular formula C11H8ClN3O3, MW 265.65 g/mol) for analytical method development and quality control.

The molecular framework of 1-(4-Chlorophenyl)-4-formyl-5-hydroxy-1H-pyrazole-3-carboxamide (C11H8ClN3O3) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).

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

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