2,2,6,6-tetramethyl-1,3,5,7-tetrahydrosilolo[3,4-f][2]benzosilole;69020-20-8;2,6-Disila-s-indacene,1,2,3,5,6,7-hexahydro-2,2,6,6-tetramethyl-
2,2,6,6-tetramethyl-1,3,5,7-tetrahydrosilolo[3,4-f][2]benzosilole