InChI=1S/C21H24O10/c1-9-4-12(29-18-10(2)6-11(28-3)8-14(18)22)7-13(5-9)30-21-17(25)15(23)16(24)19(31-21)20(26)27/h4-8,15-17,19,21-25H,1-3H3,(H,26,27)