InChI=1S/C35H28O14/c36-18-10-7-15(8-11-18)6-9-17-12-19(46-33-29(42)27(40)28(41)30(49-33)32(43)44)13-21-23(17)35(34(45)48-21)24-22(14-20(37)25(38)26(24)39)47-31(35)16-4-2-1-3-5-16/h1-14,27-31,33,36-42H,(H,43,44)/b9-6+