1-(4-Methoxy-beta-phenylethyl)-5,5-diethylbarbituric acid 4-24-00-01915 (Beilstein Handbook Reference) 5,5-Diethyl-1-(4-methoxyphenethyl)barbituric acid 66940-91-8 BARBITURIC ACID, 5,5-DIETHYL-1-(4-METHOXYPHENETHYL)- BRN 0323259