InChI=1S/C21H24O9/c1-8-3-4-11-9(2)5-12-13(14(11)15(8)22)10(6-28-12)7-29-21-18(25)16(23)17(24)19(30-21)20(26)27/h5-6,8,16-19,21,23-25H,3-4,7H2,1-2H3,(H,26,27)