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