InChI=1S/C35H28O14/c36-17-12-20(37)25-22(13-17)47-31(16-4-2-1-3-5-16)35(25)24-19(26(39)21(38)14-23(24)48-34(35)45)11-8-15-6-9-18(10-7-15)46-33-29(42)27(40)28(41)30(49-33)32(43)44/h1-14,27-31,33,36-42H,(H,43,44)/b11-8+