1-(3,4-Dimethoxy-beta-phenylethyl)-5,5-diethylbarbituric acid 4-24-00-01915 (Beilstein Handbook Reference) 5,5-Diethyl-1-(3,4-dimethoxyphenethyl)barbituric acid 66940-80-5 BARBITURIC ACID, 5,5-DIETHYL-1-(3,4-DIMETHOXYPHENETHYL)- BRN 0339708