4,6(1H,5H)-Pyrimidinedione, 5-ethyldihydro-5-(3-methylbutyl)-2-thioxo- (9CI) 4388-79-8 5-24-09-00178 (Beilstein Handbook Reference) 5-Ethyl-5-isoamylthiobarbituric acid 5-Ethyl-5-isopentyl-2-thiobarbituric acid BRN 0211184 Barbituric acid, 5-ethyl-5-isopentyl-2-thio- Ethylisoamylthiobarbituric acid NSC 47360 Thioamobarbital Thioamytal Thioethamyl Thioethanyl