InChI=1S/C35H20O13/c36-20-13-18(25-27(38)30(48-35(25)45)23(32(41)42)15-9-5-2-6-10-15)17-11-16(12-19-24(17)28(20)46-33(19)43)21-26(37)29(47-34(21)44)22(31(39)40)14-7-3-1-4-8-14/h1-13,21,26,36-38H,(H,39,40)(H,41,42)/b29-22-,30-23-