InChI=1S/C21H26O12/c1-28-10-5-11(31-15(22)7-10)6-13(9-2-3-12-14(4-9)30-8-29-12)32-21-18(25)16(23)17(24)19(33-21)20(26)27/h2-4,10-11,13,16-19,21,23-25H,5-8H2,1H3,(H,26,27)