InChI=1S/C25H20O13S/c1-35-19-6-10(2-3-17(19)38-39(32,33)34)23-21(25(30)31)13-4-11(5-16(29)24(13)37-23)18-9-15(28)22-14(27)7-12(26)8-20(22)36-18/h2-8,18,21,23,26-27,29H,9H2,1H3,(H,30,31)(H,32,33,34)