11-Ethyl-3-thio-2,4-diazaspiro(5.5)undec-8-ene-1,3,5-trione 2,4-Diazaspiro(5.5)undec-8-ene-1,3,5-trione, 11-ethyl-3-thioxo- 4-24-00-02047 (Beilstein Handbook Reference) 67196-37-6 BRN 0202082