63989-99-1 7,9-Diazaspiro(4.5)decane-6,8,10-trione, 1-ethyl-, sodium salt Sodium 1-ethyl-7,9-diazaspiro(4.5)decane-6,8,10-trione Sodium spiro(1'-ethylcyclopentane)-5,5-pyrimidine-2,4,6-trione Sodium spiro(1-ethylcyclopentane barbiturate)