1,3-Dimethyl-5-ethyl-5-(1-methylbutyl)barbituric acid 1,3-Dimethylpentobarbital 2,4,6(1H,3H,5H)-Pyrimidinetrione, 5-ethyl-1,3-dimethyl-5-(1-methylbuthyl)- (9CI) 28239-47-6 5-24-09-00171 (Beilstein Handbook Reference) BARBITURIC ACID, 1,3-DIMETHYL-5-ETHYL-5-(1-METHYLBUTYL)- BRN 0235039 Dimethylpentobarbital N,N'-Dimethylpentobarbital