InChI=1S/C25H22O11S/c1-33-15-4-2-3-12(5-15)24-17(11-34-37(30,31)32)16-6-13(7-20(29)25(16)36-24)21-10-19(28)23-18(27)8-14(26)9-22(23)35-21/h2-9,17,21,24,26-27,29H,10-11H2,1H3,(H,30,31,32)