1,3-dimethylbarbital

N,N'-Dimethylbarbital

1,3-Dimethyl-5,5-diethylbarbituric acid

5,5-Diethyl-1,3-dimethyl-2,4,6(1H,3H,5H)-pyrimidinetrione

1,3-Dimethyl-5,5-diethylpyrimidine-2,4,6(1H,3H,5H)-trione