InChI=1S/C24H42O4Si2/c1-21(2,3)29(22(4,5)6)25-16-20(28-29)17-13-14-18-19(15-17)27-30(26-18,23(7,8)9)24(10,11)12/h13-15,20H,16H2,1-12H3