InChI=1S/C21H24O11/c22-8-16-18(28)19(29)20(30)21(32-16)31-15-7-10(23)6-14(27)17(15)12(25)4-2-9-1-3-11(24)13(26)5-9/h1,3,5-7,16,18-24,26-30H,2,4,8H2/t16-,18-,19+,20-,21-/m1/s1