InChI=1S/C25H22O12S/c1-34-15-3-12(2-13(26)6-15)24-17(10-35-38(31,32)33)16-4-11(5-20(30)25(16)37-24)21-9-19(29)23-18(28)7-14(27)8-22(23)36-21/h2-8,17,21,24,26-28,30H,9-10H2,1H3,(H,31,32,33)