InChI=1S/C21H26O10S/c1-5-6-13(23)17-19-12(9-14(21(3,4)30-19)31-32(26,27)28)18(25)16-11(7-10(2)22)8-15(24)29-20(16)17/h8,10,14,22,25H,5-7,9H2,1-4H3,(H,26,27,28)