has role has role is conjugate base of is conjugate acid of gas molecular entity hydrogen sulfide CHEBI:13356 A sulfur hydride consisting of a single sulfur atom bonded to two hydrogen atoms. A highly poisonous, flammable gas with a characteristic odour of rotten eggs, it is often produced by bacterial decomposition of organic matter in the absence of oxygen. acide sulfhydrique Sulfide H2S dihydrogen sulfide dihydrogen monosulfide Hydrogen sulfide CHEBI:45489 sulfure d'hydrogene [SH2] CHEBI:14414 CHEBI:16136 CHEBI:5787 chebi_ontology HYDROSULFURIC ACID hydrogen monosulfide CHEBI:24639 hydrogen sulphide Hydrogen-sulfide Hydrogen sulfide CHEBI:43058 Schwefelwasserstoff hydrogene sulfure metabolite toxin hydrosulfide sulfonium hydracid sulfur hydride vasodilator agent mononuclear parent hydride genotoxin signalling molecule Escherichia coli metabolite