InChI=1S/C21H22O12S/c22-10-6-11(23)16(20-15(10)12(24)7-13(32-20)9-4-2-1-3-5-9)21-19(27)18(26)17(25)14(33-21)8-31-34(28,29)30/h1-6,13-14,17-19,21-23,25-27H,7-8H2,(H,28,29,30)