3-Cyclohexyl-5-ethylbarbituric acid

1-cyclohexyl-5-ethyl-1,3-diazinane-2,4,6-trione

5-Ethyl-1-cyclohexylpyrimidine-2,4,6(1H,3H,5H)-trione

1-Cyclohexyl-5-ethylpyrimidine-2,4,6(1H,3H,5H)-trione