63985-86-4 1,7-Diazadispiro[4.0.4.2]dodecane-2,8-dione,11,12-bis[5-[[5-[(3,4-diethyl-1,5-dihydro-5-oxo-2H-pyrrol-2-ylidene)methyl]-3,4-diethyl-2H-pyrrol-2-ylidene]methyl]-3,4-diethyl-1H-pyrrol-2-yl]-3,4,9,10-tetraethyl- 915976-15-7 4,8-Dioxa-3,9-disilaundecane,5-ethenyl-2,2,3,3,6,6,9,9,10,10-decamethyl-7-(2-propyn-1-yl)-, (5R,7R)- 915976-17-9 4,8-Dioxa-3,9-disilaundecane,5-ethenyl-2,2,3,3,6,6,9,9,10,10-decamethyl-7-(2-propyn-1-yl)-, (5S,7R)-