3-Pyridin-3-yl-2H-1,2,4-oxadiazol-5-one CAS 1198-99-8

Description

Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 3-Pyridin-3-yl-2H-1,2,4-oxadiazol-5-one.

3-Pyridin-3-yl-2H-1,2,4-oxadiazol-5-one (CAS 1198-99-8), molecular formula C7H5N3O2 and molecular weight 163.13 g/mol, is a CATO reference standard with documented purity and traceability.

The molecular framework of 3-Pyridin-3-yl-2H-1,2,4-oxadiazol-5-one (C7H5N3O2) is characterized by an amino-acid-derived structure, 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. 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).

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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