3,4-Dihydrouracil5,6-二氢-2,4-二羟基嘧啶DIHYDROURACIL5,6-Dihydro-2,4-dihydroxypyrimidineDihydrouracil二氢尿嘧啶Dihydro Uracil5,6-Dihydro-2,4(1H,3H)-pyrimidinedione5,6-DihydrouracilNSC 11867dihydropyrimidine-2,4(1H,3H)-dione5,6-Dihydrouracil5,6-二氢尿嘧啶5,6-Dihydro-2,4-dihydroxypyrimidineHydrouracil2,4-Dioxotetrahydropyrimidine2,4(1H,3H)-Pyrimidinedione, dihydro-DihydrouracilDihydro-2,4(1H,3H)-pyrimidinedione5,6-Dihydrouracil5,6-dihydrouracilDihydrouracile5,6-dihydrouracilDIHYDROPYRIMIDINE-2,4(1H,3H)-DIONE