InChI=1S/C39H38O13S/c1-20(19-52-53(49,50)51)3-9-27-31(42)12-11-28(38(27)47)39(48)36-29(26-10-8-25(41)18-33(26)44)13-21(2)14-30(36)37-34(45)15-22(16-35(37)46)4-5-23-6-7-24(40)17-32(23)43/h3-8,10-12,14-18,29-30,36,40-47H,9,13,19H2,1-2H3,(H,49,50,51)/b5-4+,20-3?