4-Hydroxy-3-nitropyridine N-oxide CAS 31872-57-8

Description

Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 4-Hydroxy-3-nitropyridine N-oxide.

4-Hydroxy-3-nitropyridine N-oxide (CAS 31872-57-8), molecular formula C5H4N2O4 and molecular weight 156.10 g/mol, is a CATO reference standard with documented purity and traceability.

Structurally, 4-Hydroxy-3-nitropyridine N-oxide (C5H4N2O4) contains a carbohydrate-derived structure, an amide group. The molecule exhibits a degree of unsaturation (DBE) of 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 156.10 g/mol, it falls into the medium-molecular-weight range. 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.

CATO manufactures 4-Hydroxy-3-nitropyridine N-oxide under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.

Physical & Chemical Properties

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