1,3-Diethyl-2-thiobarbituric acid 1,3-Diethylthiobarbituric acid 4,6(1H,5H)-Pyrimidinedione, 1,3-diethyldihydro-2-thioxo- 5217-47-0 Barbituric acid, 1,3-diethyl-2-thio- N,N'-Diethyl-2-thiobarbituric acid N,N'-Diethylthiobarbituric acid NSC158284