1-(2,3-Dimethoxy-beta-phenylethyl)-5,5-diethylbarbituric acid 4-24-00-01915 (Beilstein Handbook Reference) 5,5-Diethyl-1-(2,3-dimethoxyphenethyl)barbituric acid 66940-77-0 BARBITURIC ACID, 5,5-DIETHYL-1-(2,3-DIMETHOXYPHENETHYL)- BRN 0346210