has role is deprotonated form of is protonated form of gas molecular entity hydrogen chloride CHEBI:24635 Hydrogenchlorid HCl CHEBI:5590 chlorure d'hydrogene Hydrogen chloride [HCl] CHEBI:13364 Wasserstoffchlorid cloruro de hidrogeno chebi_ontology CHEBI:17883 Hydrochloride A mononuclear parent hydride consisting of covalently bonded hydrogen and chlorine atoms. hydrochloric acid Chlorwasserstoff chloride hydrogen halide chlorine molecular entity mononuclear parent hydride chloronium mouse metabolite