InChI=1S/C21H20O12/c22-7-1-2-12(32-21-18(28)16(26)17(27)19(33-21)20(29)30)9(3-7)10-6-31-13-5-8(23)4-11(24)14(13)15(10)25/h1-5,10,16-19,21-24,26-28H,6H2,(H,29,30)