InChI=1S/C21H24O10S/c1-29-19-11-13(3-7-15(19)22)5-9-17(24)21(31-32(26,27)28)18(25)10-6-14-4-8-16(23)20(12-14)30-2/h3-4,7-8,11-12,21-23H,5-6,9-10H2,1-2H3,(H,26,27,28)