Exploring Tetrabarbital. To explore a different substance…

Tetrabarbital
5-Ethyl-5-(hexan-3-yl)-1,3-diazinane-2,4,6-trione
 14098  C12H20N2O3  240.299
 InChI=1S/C12H20N2O3/c1-4-7-8(5-2)12(6-3)9(15)13-11(17)14-10(12)16/h8H,4-7H2,1-3H3,(H2,13,14,15,16,17)
 ZLUNGGZJSQDFPH-UHFFFAOYSA-N This stereoisomer Any stereoisomer
 CCCC(C1(CC)C(=O)NC(=O)NC1=O)CC