11-Methyl-3-thioxo-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-methyl-3-thioxo- 4-24-00-02041 (Beilstein Handbook Reference) 67196-41-2 BRN 0199013