InChI=1S/C21H24O10S/c1-29-20-14-9-11(17(24)21(20)30-2)5-3-4-6-16(23)18(25)19(31-32(26,27)28)12-7-8-15(22)13(14)10-12/h7-10,18-19,22,24-25H,3-6H2,1-2H3,(H,26,27,28)