InChI=1S/C22H26O10S/c1-29-17-9-8-13-10-14(17)15-11-12(19(25)22(31-3)20(15)30-2)6-4-5-7-16(23)21(18(13)24)32-33(26,27)28/h8-11,18,21,24-25H,4-7H2,1-3H3,(H,26,27,28)