has role has role is conjugate base of is conjugate acid of independent continuant water An oxygen hydride consisting of an oxygen atom that is covalently bonded to two hydrogen atoms [OH2] CHEBI:44819 dihydrogen oxide CHEBI:44701 H(2)O CHEBI:42043 aqua Wikipedia:Water CHEBI:10743 agua Water Wasser CHEBI:43228 CHEBI:42857 KEGG:D00001 chebi_ontology dihydridooxygen WATER CHEBI:5585 HMDB:HMDB0002111 Water eau MolBase:1 MetaCyc:WATER WATER acqua BOUND WATER KEGG:C00001 PDBeChem:HOH CHEBI:44292 CHEBI:13352 HOH CHEBI:15377 H2O CHEBI:27313 hydrogen hydroxide hydroxide oxonium oxygen hydride mononuclear parent hydride amphiprotic solvent inorganic hydroxy compound mouse metabolite Saccharomyces cerevisiae metabolite greenhouse gas Escherichia coli metabolite human metabolite