1-Hydroxypyrazin-2(1H)-one CAS 66313-29-9

Description

Compared with other compounds in its class, the molecular weight of 112.09 g/mol gives 1-Hydroxypyrazin-2(1H)-one distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

1-Hydroxypyrazin-2(1H)-one (CAS 66313-29-9), molecular formula C4H4N2O2 and molecular weight 112.09 g/mol, is a CATO reference standard with documented purity and traceability.

The molecular framework of 1-Hydroxypyrazin-2(1H)-one (C4H4N2O2) 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. 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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