InChI=1S/C35H28O14/c36-18-7-2-15(3-8-18)1-4-17-11-19(37)13-23-25(17)35(34(45)48-23)26-22(39)12-20(38)14-24(26)47-31(35)16-5-9-21(10-6-16)46-33-29(42)27(40)28(41)30(49-33)32(43)44/h1-14,27-31,33,36-42H,(H,43,44)/b4-1+