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