3,4-Dihydrouracil5,6-二氢-2,4-二羟基嘧啶DIHYDROURACIL5,6-Dihydro-2,4-dihydroxypyrimidine二氢尿嘧啶Dihydrouracil5,6-DihydrouracilNSC 118675,6-Dihydro-2,4(1H,3H)-pyrimidinedioneDihydro Uracildihydropyrimidine-2,4(1H,3H)-dione5,6-二氢尿嘧啶5,6-Dihydrouracil2,4-DioxotetrahydropyrimidineHydrouracilDIHYDROPYRIMIDINE-2,4(1H,3H)-DIONEDihydrouracile2,4(1H,3H)-Pyrimidinedione, dihydro-5,6-Dihydro-2,4-dihydroxypyrimidine5,6-dihydrouracilDihydrouracil5,6-dihydrouracilDihydro-2,4(1H,3H)-pyrimidinedione5,6-Dihydrouracil