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