InChI=1S/C21H30O10/c1-8-7-29-10-6-9-4-5-11(22)21(3,20(9,2)17(26)12(8)10)31-19-15(25)13(23)14(24)16(30-19)18(27)28/h7,9,11,13-17,19,22-26H,4-6H2,1-3H3,(H,27,28)