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