Uridine 5'-monophosphate is a pyrimidine ribonucleoside 5'-monophosphate having uracil as the nucleobase. It has a role as a human metabolite, an Escherichia coli metabolite and a mouse metabolite. It is a uridine 5'-phosphate and a pyrimidine ribonucleoside 5'-monophosphate. It is a conjugate acid of a uridine 5'-monophosphate(2-).