1,3-Dimethyl-5-isopropylbarbituric acid 2,4,6(1H,3H,5H)-Pyrimidinetrione, 1,3-dimethyl-5-(1-methylethyl)- (9CI) 5-24-09-00129 (Beilstein Handbook Reference) 7358-62-5 BARBITURIC ACID, 1,3-DIMETHYL-5-ISOPROPYL- BRN 0182800 NSC 120743