63990-13-6 8,10-Diazaspiro(5.5)undecane-7,9,11-trione, 1-ethyl-5-methyl-, sodium salt Sodium 1-ethyl-5-methyl-8,10-diazaspiro(5.5)undecane-7,9,11-trione Sodium spiro(2'-ethyl-6'-methylcyclohexane)-5,5-pyrimidine-2,4,6-trione Sodium spiro(2-ethyl-6-methylcyclohexane barbituric acid)