2,4-DIAZA-8-SILASPIRO(5.5)UNDECANE-1,3,5-TRIONE, 8,8,11-TRIMETHYL- 2,4-Diaza-8,8,11-trimethyl-8-silaspiro(5.5)undecane-1,3,5-trion 2,4-Diaza-8,8,11-trimethyl-8-silaspiro(5.5)undecane-1,3,5-trione 52-55-1 BRN 0808750 NSC 96857