InChI=1S/C28H52O2Si/c1-4-7-8-9-10-11-12-13-14-15-16-17-21-26-29-31(5-2,6-3)30-27-22-25-28-23-19-18-20-24-28/h18-20,23-24H,4-17,21-22,25-27H2,1-3H3