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