InChI=1S/C35H28O15/c36-17-7-2-14(3-8-17)1-4-16-11-19(38)12-20-23(16)35(34(46)49-20)24-21(47-31(35)15-5-9-18(37)10-6-15)13-22(25(39)26(24)40)48-33-29(43)27(41)28(42)30(50-33)32(44)45/h1-13,27-31,33,36-43H,(H,44,45)/b4-1-