63990-08-9 7,9-Diazaspiro(4.5)decane-6,8,10-trione, 1,1,4-trimethyl-, sodium salt Sodium 1,1,4-trimethyl-7,9-diazaspiro(4.5)decane-6,8,10-trione Sodium spiro(2',2',5'-trimethylcyclopentane)-5,5-pyrimidine-2,4,6-trione Sodium spiro(2,2,5-trimethylcyclopentane barbiturate)