Ethyl 1-(6-chloropyridin-2-yl)-5-hydroxy-1H-pyrazole-4-carboxylate CAS 1279204-71-5

Description

Compared with other compounds in its class, the molecular weight of 267.67 g/mol gives Ethyl 1-(6-chloropyridin-2-yl)-5-hydroxy-1H-pyrazole-4-carboxylate distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies Ethyl 1-(6-chloropyridin-2-yl)-5-hydroxy-1H-pyrazole-4-carboxylate (CAS 1279204-71-5), a certified reference material (molecular formula C11H10ClN3O3, MW 267.67 g/mol) for analytical method development and quality control.

Ethyl 1-(6-chloropyridin-2-yl)-5-hydroxy-1H-pyrazole-4-carboxylate (C11H10ClN3O3) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.

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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