2,4,6(1H,3H,5H)-Pyrimidinetrione, 5-ethyl-5-(1-methylbutyl)-1-(2-propenyl)- 4-24-00-01953 (Beilstein Handbook Reference) 5-Ethyl-5-(1-methylbutyl)-1-(2-propenyl)-2,4,6(1H,3H,5H)-pyrimidinetrione 99683-86-0 BRN 0256191 Barbituric acid, 1-allyl-5-ethyl-5-(1-methylbutyl)- N-Allylpentobarbital N-Monoallylpentobarbital