115-58-2 2,4,6(1H,3H,5H)-Pyrimidinetrione, 5-ethyl-5-pentyl- 5-Aethyl-5-pentyl-(2')-barbitursaeure 5-Ethyl-5-pentylbarbituric acid Barbituric acid, 5-ethyl-5-pentyl- NSC32305 PENTOBARBITAL WLN: T6VMVMV FHJ F5 F2