InChI=1S/C20H22O13S/c21-10-4-1-9(2-5-10)3-6-11(22)15-12(23)7-13(24)18(16(15)26)32-20-17(27)19(14(25)8-31-20)33-34(28,29)30/h1-2,4-5,7,14,17,19-21,23-27H,3,6,8H2,(H,28,29,30)