uracil 112.027 112.08684 2,4(1H,3H)-pyrimidinedione 2,4-Dioxopyrimidine 2,4-Pyrimidinedione A common and naturally occurring pyrimidine nucleobase in which the pyrimidine ring is substituted with two oxo groups at positions 2 and 4. Found in RNA, it base pairs with adenine and replaces thymine during DNA transcription. Beilstein:606623 C4H4N2O2 CAS:66-22-8 CHEBI:15288 CHEBI:17568 CHEBI:27210 CHEBI:46375 CHEBI:9882 DrugBank:DB03419 Gmelin:2896 HMDB:HMDB0000300 ISAKRJDGNUQOIC-UHFFFAOYSA-N InChI=1S/C4H4N2O2/c7-3-1-2-5-4(8)6-3/h1-2H,(H2,5,6,7,8) KEGG:C00106 KEGG:D00027 KNApSAcK:C00001513 MetaCyc:URACIL O=c1cc[nH]c(=O)[nH]1 PDBeChem:URA PMID:11279060 PMID:12855717 PMID:15274295 PMID:16834123 PMID:17439666 PMID:18533995 PMID:18815805 PMID:19175333 PMID:22020693 PMID:22074393 PMID:22120518 PMID:22171528 PMID:22237209 PMID:22299724 PMID:22356544 PMID:22447672 PMID:22483865 PMID:22567906 PMID:22685418 PMID:3654008 Reaxys:606623 U URACIL Ura Uracil Urazil Wikipedia:Uracil chebi_ontology pyrimidine-2,4(1H,3H)-dione uracil pyrimidine nucleobase pyrimidone