InChI=1S/C23H20O12/c1-30-10-3-4-11-13(7-10)33-19(9-2-5-12-14(6-9)32-8-31-12)20(15(11)24)34-23-18(27)16(25)17(26)21(35-23)22(28)29/h2-7,16-18,21,23,25-27H,8H2,1H3,(H,28,29)