has functional parent is conjugate base of orotic acid uracil orotate 155.009 155.08830 2,6-dioxo-1,2,3,6-tetrahydropyrimidine-4-carboxylate Beilstein:3651747 C5H3N2O4 CAS:73-97-2 CHEBI:14698 CHEBI:25719 CHEBI:30839 Gmelin:464718 InChI=1S/C5H4N2O4/c8-3-1-2(4(9)10)6-5(11)7-3/h1H,(H,9,10)(H2,6,7,8,11)/p-1 PXQPEWDEAKTCGB-UHFFFAOYSA-M [O-]C(=O)c1cc(=O)[nH]c(=O)[nH]1 chebi_ontology orotate monocarboxylic acid anion