InChI=1S/C20H22O11S/c21-14-6-12(30-19-18(23)20(24,9-28-19)10-29-32(25,26)27)7-16-13(14)8-15(22)17(31-16)11-4-2-1-3-5-11/h1-7,15,17-19,21-24H,8-10H2,(H,25,26,27)