InChI=1/C21H22O11/c22-10-4-1-9(2-5-10)3-6-12(24)15-13(25)7-11(23)8-14(15)31-21-18(28)16(26)17(27)19(32-21)20(29)30/h1-2,4-5,7-8,16-19,21-23,25-28H,3,6H2,(H,29,30)/t16-,17-,18+,19-,21+/s2