InChI=1S/C22H26O9S/c1-13-16-9-14(7-6-8-30-32(23,24)25)10-17(26-2)21(16)31-20(13)15-11-18(27-3)22(29-5)19(12-15)28-4/h6-7,9-13,20H,8H2,1-5H3,(H,23,24,25)