1-[5-(3-tert-Butyl-1,2,4-oxadiazol-5-yl)pyridin-2-yl]-5-methyl-1H-pyrazole-4-carboxylic acid CAS 1351399-02-4

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.

1-[5-(3-tert-Butyl-1,2,4-oxadiazol-5-yl)pyridin-2-yl]-5-methyl-1H-pyrazole-4-carboxylic acid (CAS 1351399-02-4) is a high-purity analytical reference standard with the molecular formula C16H17N5O3 and a molecular weight of 327.34 g/mol.

The molecular framework of 1-[5-(3-tert-Butyl-1,2,4-oxadiazol-5-yl)pyridin-2-yl]-5-methyl-1H-pyrazole-4-carboxylic acid (C16H17N5O3) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. 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. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

As a certified reference material (CRM), 1-[5-(3-tert-Butyl-1,2,4-oxadiazol-5-yl)pyridin-2-yl]-5-methyl-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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