2,4,6(1H,3H,5H)-Pyrimidinetrione, 5-ethyl-5-(phenylmethyl)- (9CI) 36226-64-9 5-24-09-00312 (Beilstein Handbook Reference) 5-Benzyl-5-ethylbarbituric acid BARBITURIC ACID, 5-BENZYL-5-ETHYL- BRN 0227913 Benzylbarbital Ethylbenzylbarbituric acid