1,3-Dimethyl-1,2,3,4-tetrahydropyrimidine-2,4-dione1,3-Dimethyluracil2,4-Dihydroxy-1,3-dimethylpyrimidine1,3-Dimethyluracil1,3-Dimethyl-2,4(1H,3H)-pyrimidinedione1,3-二甲基脲嘧啶1,3-二甲基-2,4(1H,3H)-嘧啶二酮1,3-二甲基-2,4-嘧啶二酮1,3-dimethylpyrimidine-2,4(1H,3H)-dione1,3-dimethyluracil2,4-Dihydroxy-1,3-dimethylpyrimidineN1,N3-DimethyluracilN,N'-Dimethyluracil