hexose CHEBI:14399 hexoses Any six-carbon monosaccharide which in its linear form contains either an aldehyde group at position 1 (aldohexose) or a ketone group at position 2 (ketohexose). CHEBI:18133 KEGG:C00738 Hexose WURCS=2.0/1,1,0/[axxxxh-1x_1-5_2*NCC/3=O]/1/ GlyTouCan:G70994MS CHEBI:5709 chebi_ontology GlyGen:G70994MS CHEBI:24590 monosaccharide monosaccharide