16468-98-7 2,4,6(1H,3H,5H)-Pyrimidinetrione, 5-ethyl-5-(1-methyl-1-propenyl)- (9CI) 4-24-00-01988 (Beilstein Handbook Reference) 5-Ethyl-5-(1-methylpropenyl)barbituric acid BRN 0199033 Barbituric acid, 5-ethyl-5-(1-methylpropenyl)- NSC 125737