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