InChI=1S/C31H57NO4Si2/c1-21(11-14-28(33)34-4)24-12-13-25-29-26(16-18-31(24,25)3)30(2)17-15-23(35-37(5,6)7)19-22(30)20-27(29)32-36-38(8,9)10/h21-26,29H,11-20H2,1-10H3/t21?,22-,23+,24?,25?,26?,29?,30?,31?/m1/s1