InChI=1S/C30H26O16S/c31-13-24-27(36)28(37)29(38)30(45-24)43-17-10-19(33)26-20(34)12-21(44-23(26)11-17)15-3-5-16(6-4-15)42-25(35)8-2-14-1-7-18(32)22(9-14)46-47(39,40)41/h1-12,24,27-33,36-38H,13H2,(H,39,40,41)/b8-2+