222325 <common-name>1-oxidopyrazin-1-ium</common-name> <description>1-oxidopyrazin-1-ium is an organic compound with the formula C4H4N2O and an average molecular weight of 96.09 g/mol. 1-oxidopyrazin-1-ium belongs to the pyrazinium compounds, a subclass of diazines within the organic compounds. It is further classified as an organoheterocyclic compound. This substance has been found in or released from two recorded sources, specifically electrical and electronic equipment such as antennas and amplifiers.</description> <cas>2423-65-6</cas> <pubchem-id>137595</pubchem-id> <chemical-formula>C4H4N2O</chemical-formula> <weight>96.09</weight> <appearance nil="true"/> <melting-point nil="true"/> <boiling-point nil="true"/> <density nil="true"/> <solubility nil="true"/> <specific-gravity nil="true"/> <flash-point nil="true"/> <vapour-pressure nil="true"/> <route-of-exposure nil="true"/> <target nil="true"/> <mechanism-of-toxicity nil="true"/> <metabolism nil="true"/> <toxicity nil="true"/> <lethaldose nil="true"/> <carcinogenicity nil="true"/> <use-source nil="true"/> <min-risk-level nil="true"/> <health-effects nil="true"/> <symptoms nil="true"/> <treatment nil="true"/> <created-at type="dateTime">2026-08-22T16:51:47Z</created-at> <updated-at type="dateTime">2026-08-22T16:51:47Z</updated-at> <interacting-proteins nil="true"/> <wikipedia nil="true"/> <uniprot-id nil="true"/> <kegg-compound-id nil="true"/> <omim-id nil="true"/> <chebi-id nil="true"/> <biocyc-id nil="true"/> <ctd-id nil="true"/> <stitch-id nil="true"/> <drugbank-id nil="true"/> <pdb-id nil="true"/> <actor-id nil="true"/> <organism nil="true"/> <export type="boolean">true</export> <metabolizing-proteins nil="true"/> <transporting-proteins nil="true"/> <moldb-smiles nil="true"/> <moldb-formula>C4H4N2O</moldb-formula> <moldb-inchi>InChI=1S/C4H4N2O/c7-6-3-1-5-2-4-6/h1-4H</moldb-inchi> <moldb-inchikey>RUIZBQQGWNBRFH-UHFFFAOYSA-N</moldb-inchikey> <moldb-average-mass type="decimal">96.09</moldb-average-mass> <moldb-mono-mass type="decimal">96.03236276</moldb-mono-mass> <origin nil="true"/> <state nil="true"/> <logp>-1.2</logp> <hmdb-id nil="true"/> <chembl-id nil="true"/> <chemspider-id nil="true"/> <structure-image-file-name nil="true"/> <structure-image-content-type nil="true"/> <structure-image-file-size type="integer" nil="true"/> <structure-image-updated-at type="dateTime" nil="true"/> <biodb-id nil="true"/> <synthesis-reference nil="true"/> <structure-image-caption nil="true"/> <chemdb-id>CHEM218218</chemdb-id> <dsstox-id nil="true"/> <toxcast-id nil="true"/> <stoff-ident-origin nil="true"/> <stoff-ident-id nil="true"/> <susdat-id nil="true"/> <iupac>1-oxidopyrazin-1-ium</iupac> <moldb-polar-surface-area nil="true"/> <moldb-refractivity nil="true"/> <moldb-polarizability nil="true"/> <moldb-rotatable-bond-count nil="true"/> <moldb-acceptor-count nil="true"/> <moldb-donor-count nil="true"/> <moldb-pka-strongest-acidic nil="true"/> <moldb-pka-strongest-basic nil="true"/> <moldb-physiological-charge nil="true"/> <moldb-number-of-rings nil="true"/> <moldb-alogps-logp nil="true"/> <moldb-alogps-logs nil="true"/> <moldb-alogps-solubility nil="true"/> <kingdom>Organic compounds</kingdom> <superklass>Organoheterocyclic compounds</superklass> <klass>Diazines</klass> <subklass>Pyrazinium compounds</subklass> <paper-count type="integer">1</paper-count> <sync-id>CED0063262</sync-id> <structure-inchikey nil="true"/> <structure-fingerprint nil="true"/> <structure-pattern-fingerprint nil="true"/> <structure-pickle type="binary" nil="true" encoding="base64"/> <structure-indexed-at type="dateTime" nil="true"/> </compound>