63990-03-4 7,9-Diazaspiro(4.5)decane-6,8,10-trione, 1-methyl-, sodium salt Sodium 1-methyl-7,9-diazaspiro(4.5)decane-6,8,10-trione Sodium spiro(1'-methylcyclopentane).5,5-pyrimidine-2,4,6-trione Sodium spiro(1-methylcyclopentane barbiturate)