InChI=1S/C23H40O2Si/c1-9-17(2)11-13-19-18(3)12-14-20-22(19,4)15-10-16-23(20,5)21(24)25-26(6,7)8/h11,19-20H,3,9-10,12-16H2,1-2,4-8H3/b17-11-/t19?,20?,22-,23-/m0/s1