InChI=1S/C21H22O12/c22-8-1-7(2-9(23)3-8)18-13(25)6-11-12(24)4-10(5-14(11)32-18)31-21-17(28)15(26)16(27)19(33-21)20(29)30/h1-5,13,15-19,21-28H,6H2,(H,29,30)