InChI=1S/C25H46O2Si2/c1-24-15-13-19(26-28(3,4)5)17-18(24)9-10-20-21-11-12-23(27-29(6,7)8)25(21,2)16-14-22(20)24/h12,18-22H,9-11,13-17H2,1-8H3/t18-,19-,20?,21?,22?,24-,25-/m1/s1