115-58-2 2,4,6(1H,3H,5H)-Pyrimidinetrione, 5-ethyl-5-pentyl- (9CI) 5-24-09-00167 (Beilstein Handbook Reference) 5-Aethyl-5-pentyl-(2')-barbitursaeure [German] 5-Ethyl-5-pentylbarbituric acid BRN 0210185 Barbituric acid, 5-ethyl-5-pentyl- NSC 32305