2,4(1H,3H)-Pyrimidinedione, dihydro-5,5-diethyl-6-thioxo- 4-Thio-5-diethylbarbituric acid 5,5-Diethyldihydro-6-thioxouracil 5-24-09-00154 (Beilstein Handbook Reference) 6300-97-6 BRN 0164004 EINECS 228-592-8