InChI=1S/C21H24O12/c22-7-12-16(28)17(29)18(30)20(33-12)21(32)13(25)6-11(24)15(19(21)31)10(5-14(26)27)8-1-3-9(23)4-2-8/h1-4,6,10,12,16-18,20,22-24,28-32H,5,7H2,(H,26,27)