InChI=1S/C21H24O10/c1-29-11-6-10(8-15(23)13-4-2-3-5-14(13)22)7-12(9-11)30-21-18(26)16(24)17(25)19(31-21)20(27)28/h2-7,9,15-19,21-26H,8H2,1H3,(H,27,28)