InChI=1S/C21H26O10S/c1-4-6-11-9-15(24)29-20-16(11)18(25)12-10-14(31-32(26,27)28)21(2,3)30-19(12)17(20)13(23)7-5-8-22/h9,14,22,25H,4-8,10H2,1-3H3,(H,26,27,28)