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