Synonyms: 2,4,6(1H,3H,5H)-Pyrimidinetrione,1-methyl-5-(1-methylethyl)-5-(2-propenyl)- (9CI); Barbituric acid,5-allyl-5-isopropyl-1-methyl- (6CI,7CI,8CI);5-Allyl-5-isopropyl-1-methylbarbituric acid; Enallylpropymal;N-Methyl-5-allyl-5-isopropylbarbituric acid; NSC 25571; Narconumal