InChI=1S/C31H52OSi/c1-21(2)22(3)10-11-23(4)27-14-15-28-26-13-12-24-20-25(32-33(7,8)9)16-18-30(24,5)29(26)17-19-31(27,28)6/h10-13,21-23,25,27-29H,14-20H2,1-9H3/b11-10+/t22-,23-,25+,27-,28+,29+,30+,31-/m0/s1