5-Hydroxypyrazolo[4,3-b]pyridine CAS 52090-73-0

Description

Compared with other compounds in its class, the molecular weight of 135.12 g/mol gives 5-Hydroxypyrazolo[4,3-b]pyridine distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies 5-Hydroxypyrazolo[4,3-b]pyridine (CAS 52090-73-0), a certified reference material (molecular formula C6H5N3O, MW 135.12 g/mol) for analytical method development and quality control.

Owing to an amide group, a hydroxyl group, an ether linkage, an aromatic ring system, 5-Hydroxypyrazolo[4,3-b]pyridine is typically off-white to pale yellow liquid. Its solid-state physicochemical attributes — including a molecular weight of 135.12 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.

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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