InChI=1S/C30H22O13S/c1-40-27-21(34)8-14(9-22(27)35)2-3-16-10-17(31)12-23-25(16)30(29(36)42-23)26-20(33)11-18(32)13-24(26)41-28(30)15-4-6-19(7-5-15)43-44(37,38)39/h2-13,28,31-35H,1H3,(H,37,38,39)/b3-2+