1-Phenyl-5,5-diethylbarbituric acid

5,5-diethyl-1-phenyl-barbituric acid

5,5-diethyl-1-phenyl-1,3-diazinane-2,4,6-trione

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