InChI=1S/C26H54OSi/c1-6-10-14-18-22-26(5)27-28(23-19-15-11-7-2,24-20-16-12-8-3)25-21-17-13-9-4/h18,22,26H,6-17,19-21,23-25H2,1-5H3/b22-18+