[1,2,4]Triazolo[4,3-a]pyridin-5(1H)-one CAS 501016-88-2

Description

Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including [1,2,4]Triazolo[4,3-a]pyridin-5(1H)-one.

[1,2,4]Triazolo[4,3-a]pyridin-5(1H)-one (CAS 501016-88-2), molecular formula C6H5N3O and molecular weight 135.12 g/mol, is a CATO reference standard with documented purity and traceability.

Based on its molecular formula C6H5N3O, [1,2,4]Triazolo[4,3-a]pyridin-5(1H)-one contains an amide group, a hydroxyl group, an ether linkage, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 135.12 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.

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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