Synonyms: Sodium spiro(2-ethyl-5-methylcyclopentane 2'-thiobarbiturate);Sodium 4-ethyl-1-methyl-8-thioxo-7,9-diazaspiro(4.5)decane-6,8,10-trione;7,9-Diazaspiro(4.5)decane-6,8,10-trione, 4-ethyl-1-methyl-8-thioxo-, sodium salt;Sodium spiro(2'-ethyl-5'-methylcyclopentane-5,5-pyrimidine-2-thio-4,6-dione);LS-60028;63989-98-0