2,6-dioxohexahydropyrimidine-4-carboxylic acid; Hydroorotic Acid; (±)-Dihydroorotic Acid; 4,5-Dihydroorotic Acid; 5,6-Dihydroorotic Acid; 5,6-Dihydrouracil-6-carboxylic Acid; 6-Hydrouracilcarboxylic Acid; DL-4,5-Dihydroorotic Acid; Dihydro-DL-orotic Acid; Dihydroorotic Acid
