1,3-Bis-(tert-butyl-dimethyl-silanyloxy)-5-(10-trimethylsilanyl-deca-1,3,5,7,9-pentaynyl)-benzene

1,3-Bis-[3-(2-benzyloxy-1-benzyloxymethyl-ethoxy)-2-(2-benzyloxy-1-benzyloxymethyl-ethoxymethyl)-propoxy]-5-ethynyl-benzene