22966-82-1 Estra-1,3,5[10]-trien-17-one, 3-[[4,6-bis(1-aziridinyl)-1,3,5-triazin-2-yl]oxy]- Estra-1,3,5[10]-trien-17-one, 3-[[4,6-bis(1-aziridinyl)-s-triazin-2-yl]oxy]- NSC106909