5774-46-9 7-Azabicyclo(4.1.0)heptane, 7,7',7''-phosphinylidynetris- (9CI) Phosphine oxide, tris(7-azabicyclo(4.1.0)hept-7-yl)- Phosphine oxide, tris(7-azabicyclo(4.1.0)heptan-7-yl)- Tris(7-azabicyclo(4.1.0)heptyl)phosphine oxide