5-Carbethoxyuracil, ethyl tetrahydropyrimidine-2,4(1H,3H)-dione-5-carboxylate, ethyl 2,4-dioxo-1,2,3,4-tetrahydropyrimidine-5-carboxylate, ethyl uracil-5-carboxylate, 2,4-dioxo-1,2,3,4-tetrahydropyrimidine-5-carboxylic acid ethyl ester, Ethyl4-hydroxy-2-oxo-1,2-dihydropyrimidine-5-carboxylate, Isoorotic acid ethyl ester, 5-ethoxycarbonyluracil, ethyl 1,2,3,4-tetrahydro-2,4-dioxopyrimidine-5-carboxylate