3 9 diphenyl 2 4 8 10 tetraoxaspiro 5.5 undecane
- 2 4 8 10-tetraoxaspiro 5.5 undecane
- 2 4 8 10-tetraoxa-3 9-dithiaspiro 5.5 undecane 3 3 9 9-tetraoxide
- 3 9-bis(2 4-di-tert-butylphenoxy)-2 4 8 10-tetraoxa-3 9-diphosphaspiro 5.5 undecane
- 3 9-bis(octadecyloxy)-2 4 8 10-tetraoxa-3 9-diphosphaspiro 5.5 undecane
- 3 9-dioxa-2 10-disilaundecane 2 2 10 10-tetramethyl-5- (trimethylsilyl)oxy -