2,4-DIAZA-8-SILASPIRO(5.5)UNDECANE-1,3,5-TRIONE, 8,8-DIMETHYL- 2,4-Diaza-8,8-dimethyl-8-silaspiro(5.5)undecane-1,3,5-trione 52-41-5 BRN 0802010 NSC 96841