urea A carbonyl group with two C-bound amine groups. Beilstein:635724 CH4N2O CHEBI:15292 CHEBI:16199 CHEBI:27218 CHEBI:46379 CHEBI:9888 Carbamide ChemIDplus:57-13-6 CiteXplore:22770225 DrugBank:DB03904 E927b Gmelin:1378 H2NC(O)NH2 HMDB:HMDB00294 Harnstoff InChI=1S/CH4N2O/c2-1(3)4/h(H4,2,3,4) InChIKey=XSQUKJJJFZCRTK-UHFFFAOYSA-N KEGG COMPOUND:57-13-6 KEGG COMPOUND:C00086 KEGG DRUG:D00023 Karbamid MetaCyc:UREA NC(N)=O NIST Chemistry WebBook:57-13-6 PDBeChem:URE Reaxys:635724 UM-BBD:c0165 UREA Urea Wikipedia:Urea carbamide carbonyldiamide chebi_ontology ur urea uree molecular entity