InChI=1S/C23H20O13/c1-7(24)34-6-8-5-10-13(15(27)12-9(14(10)26)3-2-4-11(12)25)16(28)20(8)35-23-19(31)17(29)18(30)21(36-23)22(32)33/h2-5,17-19,21,23,25,28-31H,6H2,1H3,(H,32,33)