InChI=1S/C21H26O10/c1-9(23)3-12(24)5-11-6-13(7-15-17(11)14(25)4-10(2)29-15)30-21-20(28)19(27)18(26)16(8-22)31-21/h4,6-7,9,16,18-23,26-28H,3,5,8H2,1-2H3