63990-19-2 7,9-Diazaspiro(4.5)decane-6,8,10-trione, 1-(n-butyl)-4-methyl-8-thioxo-, sodium salt Sodium 1-(n-butyl)-4-methyl-8-thioxo-7,9-diazaspiro(4.5)decane-6,8,10-trione Sodium spiro(2'-(n-butyl)-5'-methylcyclopentane)-5,5-pyrimidine-2-thio-4,6-dione Sodium spiro(2-(n-butyl)-5-methylcyclopentane 2'-thiobarbiturate)