has part has part has_part aldehyde Aldehyd aldehydes aldehidos A compound RC(=O)H, in which a carbonyl group is bonded to one hydrogen atom and to one R group. RCHO CHEBI:8750 CHEBI:13753 Aldehyde aldehydum CHEBI:13432 CHEBI:22291 29.01800 aldehyde 0 CHEBI:17478 CHOR CHEBI:2554 29.00274 KEGG:C00071 chebi_ontology aldehydes an aldehyde CHEBI:13806 aldehido CHEBI:13805 RC(=O)H [H]C([*])=O carbonyl compound formyl group