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