InChI=1S/C21H20O10/c22-8-14-16(25)17(26)19(28)21(31-14)29-11-5-6-12-13(7-11)30-20(18(27)15(12)24)9-1-3-10(23)4-2-9/h1-7,14,16-17,19,21-23,25-28H,8H2/t14-,16-,17+,19-,21-/m1/s1