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