Orotidine (Uridine-6-carboxylic acid)

1,2,3,6-Tetrahydro-2,6-dioxo-3-β-D-ribofuranosyl-4-pyrimidinecarboxylic acid

3-[(2R,3R,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl]-2,6-dioxopyrimidine-4-carboxylic acid

3-[(2R,3R,4S,5R)-3,4-dihydroxy-5-methylol-tetrahydrofuran-2-yl]-2,6-diketo-pyrimidine-4-carboxylic acid