InChI=1S/C21H24O10S/c1-29-20-11-14(4-7-16(20)23)9-17(24)18(25)12-15(22)6-3-13-5-8-19(21(10-13)30-2)31-32(26,27)28/h4-5,7-8,10-11,17,23-24H,3,6,9,12H2,1-2H3,(H,26,27,28)